Expandable Hydroponics System From Junk Flood An

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Expandable Hydroponics System from Junk - Flood and Drainby wiley coyote on September 17, 2008

Table of Contents

intro: Expandable Hydroponics System from Junk - Flood and Drain .......................................................................

step 1: What You'll Need .......................................................................................................

step 2: Reservoir Lid ..........................................................................................................

step 3: Planter ...............................................................................................................

step 4: Planter Support ........................................................................................................

step 5: Removable Planter Bag - Optional but handy ..................................................................................

step 6: Assembly .............................................................................................................

step 7: Operation .............................................................................................................

Video ....................................................................................................................

Related Instructables ...........................................................................................................

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Comments ...................................................................................................................
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intro: Expandable Hydroponics System from Junk - Flood and DrainI have been messing around with hydroponics on NO budget and HATE throwing otherwise useful things in the garbage, so being both cheap and EXTREMELY LAZYcall it efficient), I decided to break a nail and this is what I came up with.

I've learned first hand and read that the most unreliable, but seemingly necessary piece of equipment in most systems is the water pump. If you want something reliabyou are going to have to spend money and be prepared to maintain the pump and nutrient delivery system. Too much work for a potentially catastrophic failure if you me.

I found inspiration in an instructable that I can't seem to find any more. I'm sure it was called "The World's Simplest Flood and Drain System". I would like to apologizeanyone else that I do not mention or refer to due to my incompetence, but if you see any similari ties please do provide links in the comments as I do not claim to havemany original thoughts.

The air pump has become a staple component in most systems for various reasons. Moving water with air makes complete sense to me while solving several issues being cheap, reliable and easily serviceable. Pump maintenance is algae free and time will tell just how reliable.

Next, the system had to be sort of "free",so this meant parts that are common, cheap or reclaimed. Enter my friends, the pop bottle the milk bag and their goofy sidekiAluminized Bopet (chip bag to most).

Image Notes1. Reservoir2. Planter w/o planter bag. System built to save this bamboo.3. Planter w/planter bag. Started 2nd generation mung bean sprouts.4. Halved 2L pop bottle tray for support.5. Control valve, not necessary.6. Cheap Christmas light timer/aquarium pump combo "empties" reservoir 3 times daily.

7. Highly unattractive, yet functional support structure.


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step 1:What You'll Need1 ea aquarium pump1/4 inch air tubing as required3 ea 2L pop bottles or more as desired1 ea pop bottle cap(reservoir cap)2 ea Sunlight dish detergent bottle caps or pop bottle caps(planter drain)3/8 inch inner dia. vinyl tubing as required (approx 2 ft)1 ea 3/8 inch nylon plumbing TEE adaptor1 x 3 length of wood or equivalent planter supportGrowing medium (I use pea gravel)Milk Bag optionalChip bags as required1 ea elastic (aka rubber) band

Drill7/32, 3/8, and 1 1/4 inch drill bits (that's 1 and 1/4 inch)Hot melt glue gun.......maybe

step 2:Reservoir LidDrill 1/4 and 3/8 inch holes in lid as shown. Be careful to keep holes as perfectly round as possible and spaced to allow for bottle threads when screwed on.Cut ends of 1/4 inch and 3/8 inch tubing on an angle for easier feeding through the undersized holes.Feed approx. 12 inches of the 3/8 inch tubing and a small amount of the 1/4 inch tubing through lid as shown.Screw cap onto one of the bottles.


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step 3:PlanterCut the bottoms off the remaining two bottles. Drill small holes in the bottom pieces, invert and place inside the top pieces as shown.Remove the "slidey valve thingy" from the detergent bottle cap, revealing the nipple over which we wi ll slide the 3/8 inch tubing (not easy). The cap just happens to beperfect for this and fits securely over the 1 inch pop bottle threads.Alternatively, any bottle with a nipple cap can be used as the planter itself as long as the tubing can provide a seal over the nipple or the tubing can be fed through anundersized hole in a cap w/o a nipple, also shown.

Image Notes1. Homemade nipple, no leaks.2. Detergent bottle lid3. Inverted bottle bottom4. Enlarged "collar" mentioned in next step.

Image Notes1. Common drink bottle and lid.2. Stupid me disposed of the slidey thingys, but trust me it has been removed.

step 4:Planter SupportDrill 1 1/4 inch holes through a piece of 1x3 wooden shelf or other suitable support, spaced as desired or required for plants.

I will leave the supporting structure construction up to your imagination as my skills are very limited and I do not want this to become a lesson on "How NOT to Build aShelf". The simple structure that I built is very visible in the photo.


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Image Notes1. Cap fits through, but not the enlarged "collar". The tighter the fit, the better. I was limited to bit sizes available.

step 5:Removable Planter Bag - Optional but handyPoke many holes in an empty milk bag large enough for good drainage, but too small for growing medium to escape. A drywall screw worked for me.

Fill with medium and place in finished unit.

Handy for transplanting or system maintenance. It is also MUCH easier to see the water level due to the air space around the bag.

Image Notes1. baby mung beans2. Milk bag w/holes


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step 6:AssemblyPlace assembled reservoir bottle into secure position and secure planters in an inverted position, several inches above the reservoir (this allows space for interconnecthe reservoir and planters). Connect the 3/8 inch tube from the reservoir to the nipples on the planters using remaining 3/8 tubing and TEE connector as required. Try keep connections as short as possible, kink free and above the reservoir for proper drainage.

Connect air tube to aquarium air pump.

Fill reservoir through planters, if desired or by simply unscrewing cap and removing the reservoir bottle for maintenance. Do not overfill reservoir, it will be plenty once plants are added.At this point it should be fully assembled and ready to test. Test by turning on air pump and check for air or water leaks. Fill any leaks with hot melt glue.

Image Notes1. DWC unit w/ultraviolet radiation shield, single clad. (aka one chip bag)2. Fully assembled Flood and Drain unit.

step 7:OperationWhen air pump is on, the nutrient will be forced up into the planters until the pump is turned off. The nutrient will then return to the reservoir through the help of gravity a rate determined by the back flow of air through the pump and any leaks. Note: Air leaks are not necessarily bad, but will limit max height the water can be pumped wallowing for faster draining. Small amounts debris are easily flushed harmlessly to the bottom of the reservoir during the drainage cycle.

My timer is set to 2 minutes, but I let it run longer in the video to show what happens when the reservoir empties.

No check valve is required as it can't siphon through the air pump AS LONG AS the reservoir is not overfilled.

There is no overflow protection for the planters so a maximum level of nutrient will need to be established once filled with growing medium. This can easily be marked the reservoir with the elastic band. Min/max levels should both be established this way. Cannot be seen well in video, but there's a max limit.

Put reservoir and planters in inverted chip bags to prevent algae growth. Double up if necessary. It works great. See DWC unit in finished system photo, but that'sanother story.

Due to the simple operation and modularity (if that's a word) of this system, it can easily be modified or expanded upon with ease to suit your space or container needsPSI and volume are your main restrictions.

I apologize for the poor lighting in the video, but I have removed the bag so you can see the progress. Prepare to be bored! Especially by the last minute, forgot to editthat out, sorry.

Video
http://www.instructables.com/id/S0GARJNFL611MZM/


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Comments

50 comments Add Comment view all 65 commen

Jendenuvaden says: Aug 10, 2009. 3:42 AM REPCan you spare some details about your timer setup? I've found some round one on/one off timers, and am not sure what to look for for a setup that goes oand off three or more times daily.

Thanks!

awakebyjava says: Sep 28, 2008. 2:35 PM REPI think this system HAS to be a little loose. Just set one up, and the water I used to test it just plain will not drain back into the reservoir! This picture showsanti-siphon valves, because I had them laying around, but even without them the water will not drain! Any ideas on how to make sure the air pressure can released when the pump is not on? I haven't check for valves that perform this function, but if anyone has ideas let me know! Great work wiley!

dmcunningham says: Jun 18, 2009. 8:59 AM REPAs mentioned previously, there is a good chance that your air pump has an anti-siphon built in it (this is because people will still put their pump below thwater level - even though the instructions say to never do this without a check valve - so that if the power goes out as siphon wont be created). A lotmore of the hi her quality ones are doin this now.

NaTeB1 says: Jan 18, 2009. 7:00 PM REPDont know if this problem has been solved yet, but sometimes aquarium air pumps have built in anti-siphons. You can tell by blowing into the hose whiit is connected to the pump, If you cant, then it probably does.alternative-innovation.com

wiley coyote says: Jan 18, 2009. 7:54 PM REP

Please see Air Control Cap. The adjustable "screw valve" can be implemented where convenient.

bwpatton1 says: Nov 22, 2008. 8:26 AM REPWhat works is if you take the hose off the air pump when you want it to drain. That is what I do.

redkcir says: Oct 26, 2008. 7:18 PM REPI don't know how technical you want to be, but a low or middle voltage solenoid valve would allow for this. If the system were t ight, an added valve tiedinto the time would work. Tie it in so it stays energised while the pump is on and it will open and drain when it goes off. A time delay would allow it tokeep the fluid to stay up longer if you wanted it to.If you need an electricial drawing, send me an email and I will make one up for you.
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awakebyjava says: Oct 28, 2008. 5:08 PM REPYah, I think that is more work than I am up to. But I did find out there is a hydroponic store in my town, so I might check that out. Good suggestion!

chamunks says: Sep 29, 2008. 10:49 PM REPyou could also simply add another water pump to pull all the water out instead of pushing it in this way you could extend the length of time the roots areexposed to the water / nutrient solution this would also have to be on a separate corresponding timer

wiley coyote says: Sep 28, 2008. 5:39 PM REPThanks. Excellent setup. I am humbled.

It would slow down the fill rate and limit the height that it could push, but I tried adding a 2 way control valve to create a controlled leak to speed the dracycle. It worked, but I found it unnecessary as my air pump allows back flow.

You could try another pump, but I would introduce an air leak somewhere above the waterline, hopefully a controlled one first.

I would leave the anti-siphon valves out altogether because it can't siphon back, especially in your setup, and they would add slight resistance which mbe unwanted.

gomiboy says: Oct 16, 2008. 7:54 AM REPI'm going to try this with my daughter's 4th grade science class, and as we'll be building it in the classroom, I 'm not going to have much room fortinkering with it. Nobody has volunteered a pump yet, so if mine doesn't allow air backflow, how large a hole do you think I'd need in the reservoir oair hose? I'm hoping I'll have some spare bottles, but won't have much spare hose handy if I screw it up.

Thanks!

wiley coyote says: Oct 16, 2008. 8:16 AM REPMine is a Hagen Elite802. If you can't find that, make sure that it does not have anti-siphon built in and you should be fine.

Try to do all tinkering on the bottles or caps themselves as they are easily replaceable. The tiniest of holes near the top of the bottle should worThe hose is a valuable resource, so try not to mess with it.

It really is so easy to build, I would recommend throwing one together, or at least a partial system, in advance and tinkering with it , so your notoin in totally blind.

awakebyjava says: Oct 16, 2008. 2:43 PM REPJust an update. I tried putting a very small hole in the cap, the smallest drill bit I could find, to no effect. It seems that even that small of awhole lets out too much pressure. I enlarged the hole and put in a screw, which I can adjust in order to change the amount of pressure in thbottles. Not quite perfect, but as my pump doesn't let air back out, it works for now. Still working on what to plant in these, as no stores haveseeds anymore.

wiley coyote says: Oct 16, 2008. 4:37 PM REPExcellent. Whatever works.

I've run into similar problems with my pump where the water column was lower and it drains really slow. I've used cheap, 99 cent, plastic3-way control valves with the variable tap open quite successfully. Here's a pic. I also included a plastic gang valve($4.95) that wouldwork as well. Both left over from old aquariums, but available at any aquarium supply store.
http://www.instructables.com/files/deriv/FXZ/LGG2/FM7WH4QM/FXZLGG2FM7WH4QM.MEDIUM.jpghttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/files/deriv/F9T/ID7D/FM7WH483/F9TID7DFM7WH483.MEDIUM.jpghttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/chamunks/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/chamunks/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=comments


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gomiboy says: Oct 16, 2008. 8:08 AM REPSorry to add more - I'm planning on building with a single reservoir, pretty much straight from the 'ible, so I won't be needing to sync anything.Thanks again for any and all advice.

wiley coyote says: Oct 17, 2008. 8:31 PM REPYou may want to consider something like this for a single reservoir system. I know it's not pretty, but it 's a work in progress.

awakebyjava says: Sep 28, 2008. 6:12 PM REPThanks! Great artists steal. I just cut a little notch on the side of the airline hose hole in the cap. Works fine, but its hard getting the two reservoirs tosync, and I ran out of caps. I'm a high school teacher though, I can get plenty of those. My pump doesn't allow air back through, so the siphon valvearen't hurting anything really. At least I know where they are if i need them. Now I just need to figure out how to start plants going in there!

wiley coyote says: Sep 28, 2008. 7:15 PM REPI was thinking, you could experiment with hole sizes near the top of the 2L reservoir bottles to sync them. The rigidity will give you better controover flow rates and they're easiest to replace if you screw up as well. By varying the hole size in each reservoir, you could approach equilibrium

or for the less patient

You could use control valves. If you had a gang of three you could use two to sync the reservoirs and a third as a controlled rate leak or vent.

I just filled the bag with pea gravel and old aquarium gravel, threw some mung beans just under the surface and they grew. The cats made showork of them though, once they found them. I didn't think it would be that easy, but that's probably because they were mung beans.

beehard44 says: Jun 18, 2009. 4:26 AM REPi was wondering if i can use straws interconnected for that and maybe a serial port powered switch by python. especially useful in a server PC hihihi! gottatry as soon as possible!

chuckisnutz says: Nov 30, 2008. 4:32 PM REPIf you could add something to the bottles that would gradually release pressure, like those nozzles on inflatable innertubes used when sledding, you woulddefinately have something there. or, maybe something which doesn't begin releasing pressure until a minimum pressure is met, and then releases allpressure.

wiley coyote says: Dec 1, 2008. 8:31 AM REPYou don't even want to know the overcomplicated, doomed to fail, air powered valve shutters and blockers, pistons and balloons I've contemplated whethe answer was in front of me. On a larger system, control valves and the like would be great, but I'm simply experimenting on my window sill and .......oh yes.........I like the way you think.

One of my "motivations", if you will, is to keep it a "hack" job as much as possible. I do like your idea of the inflatables valves. It would actually work thesame as the stone if it simply provided enough back pressure to drive the reservoir while providing an escape route for the air during the drain cycle.

I've actually added the DWC unit to the air input, essentially an air stone, to release the pressure. It runs normally when the pump is on, increasing thebubbling action as the reservoir empties. When the reservoir empties the pressure is released through the planters and bubbling occurs there. When thpump is off the drain cycle drives the air stone again, slowly releasing the air as gravity pulls the water down.

Working on an instructable as we speak regarding same ...................... and more, but have run into some minor construction issues with materials anddesign. Also wanted to let it run for a week or two first. Should hopefully be done within the next day or two.
http://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/chuckisnutz/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/chuckisnutz/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/beehard44/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/beehard44/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/awakebyjava/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/files/deriv/FQ0/6JFK/FMEG9ZSR/FQ06JFKFMEG9ZSR.MEDIUM.jpghttp://www.instructables.com/files/deriv/FII/UE8T/FMEG9ZSU/FIIUE8TFMEG9ZSU.MEDIUM.jpghttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=comments


10/12


Note - All stones are not created equal and it's pressure releasing abilities are also directly related to the number of inches the air has to be pushed dowthrough the water to the air stone and therefore the water levels are a MAJOR part of the key. I'm sure there's a technical term for it.

It's also freed up my second pump by integrating the two.

bwpatton1 says: Nov 22, 2008. 8:27 AM REPI built this system but with three bottles instead of two and it worked PERFECTLY! Very good idea A++++Wonerful InstructableThanks!!

wiley coyote says: Nov 22, 2008. 7:51 PM REP

Thanks. I'm glad it worked out so well.

I've been messing around with some improvements and EVEN cheaper construction methods. Hopefully I 'll be able to whip something together soon.

fuzvulf says: Oct 29, 2008. 8:57 AM REPAbsolutely wonderful instructable. Going to add some small ribs for stability of the recycled containers and paint them to ward off algae growth but otherwisabsolutely great instructable.

wiley coyote says: Oct 29, 2008. 11:16 PM REPThanks and ood luck.

gomiboy says: Oct 28, 2008. 9:51 AM REPI did this with my daughter's class, as I noted earlier - huge success! I built two setups, and tried to power both reservoirs wi th 2 air pumps pushing through

3-way gang valve. Couldn't get enough pressure to do both, but because it's so modular, we were able to fall back to just one reservoir/2 pots and it workegreat!Fantastic Instructable! Thanks for the inspiration!

wiley coyote says: Oct 28, 2008. 6:31 PM REPExcellent, thank you, and your welcome. I am further inspired by your success.

I am glad you were able to work around the issues in front of them. Stimulates their minds and you get to be a hero. Hope they applauded.

PS - I've found the "mosquito" type setup, done as low profile as possible, GREATLY increases the efficiency on the flood cycle. I think the problemarises from the vertical reservoir and that the difference in the column height is so greatly affected by the drop in the reservoir.... the necessary increasein volume and pressure cannot be supplied by the l ittle pump, especially if there are leaks/vents. The drain cycle is also MUCH slower, though. I'mhoping to have something, as passive as possible, worked out by next March.

Hope that all made sense.

FreshPineSent says: Oct 26, 2008. 7:44 PM REPCalling carbonated beverages "pop" FTW.

wiley coyote says: Oct 27, 2008. 9:45 AM REPI was wondering how long it would take for someone to mention that.. .with the response from the milk bags and all.

I like to think it's the most efficient way to spell it. Considering my typing skills, it could have taken hours longer to type "soda", never mind "carbonatedbevera es".

FreshPineSent says: Oct 27, 2008. 1:05 PM REPI believe a high-five is in order.

Pumpkin$ says: Oct 17, 2008. 8:00 PM REPcool!

is there a way to grow avacados with these?

wiley coyote says: Oct 21, 2008. 9:25 PM REPThanks.

I would imagine that a similar setup could be modified to grow anything that could be grown in a planter, or a tidal pool for that matter.
http://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/Pumpkin%24/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/Pumpkin%24/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/FreshPineSent/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/FreshPineSent/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/FreshPineSent/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/FreshPineSent/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/gomiboy/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/fuzvulf/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/fuzvulf/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/bwpatton1/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/bwpatton1/?utm_source=pdf&utm_campaign=comments


11/12


pass-the-beans says: Oct 21, 2008. 4:29 PM REPdo you think if I put fish in the reservoir they could take the pressure from the pump going on and off changing the pressure? really cool!! :)

wiley coyote says: Oct 21, 2008. 9:20 PM REPI've actually thought about that because I've got a big glass jug that would be perfect. I imagine there's something that could take it, depending on the sup. Is there any similar situations in nature? Hmmmm......

You're ri ht, it would be cool. Too much work, and possible carna e, for me thou h.

Matt_says: Sep 25, 2008. 6:36 PM REP

I good Idea for expanding this is incorporting a fish tank into the setup

http://www.farmfountain.com/

Mikey D says: Sep 27, 2008. 10:32 AM REPThat's a heck of an idea!

I just happen to have a 55 gal aquarium in my living room right across from our home Hydro unit (slide show to come)

Hmmm......I wonder what momma (read wife) would say to me hanging a bunch of 1 liter bottles from the wall above the tank?

wiley coyote says: Sep 26, 2008. 11:03 PM REPThanks. That is beautiful. Till now, I've only had visions of such wonders.

I've messed with my fish tank a little, but found the requirements to be contrary to my dislike of algae, electric bills, pump costs and potential labour. Ithink I'll look back into it, though.

Mikey D says: Sep 20, 2008. 12:01 AM REPBrilliant!

I have used the tube in the cap idea for many things but never this.

This set up is referred to as "air over hydraulic" and is a great way to create large hydraulic pressures (li fting your nutes) with comparatively minisculepneumatic pressures.

As we know the aquarium air pumps make almost no pressure. but when applied to the large surface area of the nutes in the pop bottle, creates enoughpressure to lift the fluid.

Sorry for the preaching but it is the teacher in me loving your idea!

I'm definitely going to put something like this together to teach my automotive students about hydraulics!

Thanks!!!

wiley coyote says: Sep 20, 2008. 8:05 AM REPThanks. It would have taken me a couple of pages to explain that not nearly as well.I've been thinking that if I increase the surface area that I will be able to move ever larger amounts of water with the same small pump and will be limitemostly to column height. Works in my head, but then again, I also bought a pair of parachute pants in the 80's and I've been questioning my betterjudgment ever since.

synthetic.actuality says: Sep 26, 2008. 1:52 AM REPIf you could turn the reservoir bottle on its side somehow, that would provide the extra surface area, but then the placement of the air inlet becomesproblematic. Perhaps a 45-degree angle on the reservoir with a short extension of the inlet to ensure it's at the top of the bottle still?

wiley coyote says: Sep 26, 2008. 10:37 PM REPThat would work, but volume would be greatly compromised. The 2L bottle is sort of an oddity in the recycle bin with it's rigid, pressure resistiveways.

Another reservoir is needed and the shapes just aren't available for free.

Please see my next one. Mosquito

I changed the planter so the reservoir would not be such a limiting factor to volume. I call it the "Mosquito" because it works the same way. Scradrainage pipe would work great as a giant vein with more than enough volume and surface area below and between each planter to "fill" itsneeds.

Unfortunately you will lose the "replace-ability" of anything you customize and I'm not sure what effects it will have on the air pump requirement
http://www.instructables.com/id/Even_Simpler_Flood_and_Drain_System_The_Mosquito/http://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/synthetic.actuality/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/synthetic.actuality/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/Mikey+D/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/Mikey+D/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/Mikey+D/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/Mikey+D/?utm_source=pdf&utm_campaign=commentshttp://www.farmfountain.com/http://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/Matt_/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/Matt_/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/wiley+coyote/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/id/Expandable_Hydroponics_System_from_Junk_Flood_an/?utm_source=pdf&utm_campaign=comments#DISCUSShttp://www.instructables.com/member/pass-the-beans/?utm_source=pdf&utm_campaign=commentshttp://www.instructables.com/member/pass-the-beans/?utm_source=pdf&utm_campaign=comments


12/12

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Mikey D says: Sep 20, 2008. 3:56 PM REPYour are correct, more surface area will = more pressure/lift. I guess the real question is...

... did the pants have bunches of zippers all over them?

wiley coyote says: Sep 20, 2008. 5:31 PM REPUnfortunately yes. Ooodles to be precise.

kudoskun says: Sep 25, 2008. 3:30 PM REPHow does a transparent milk bag prevent mold? Also, in your image you have the 2L filter/reservoir. Shouldn't this be opaque, so mold/algae cant grow?

I like the idea, and I might even add grow lights!

Perhaps a split ('Y' hose) with a mesh filter on it to help separate the backwash material that flows back. Or just a filter on the 2L end.

wiley coyote says: Sep 25, 2008. 11:36 PM REPThe bag simply allows you to easily remove the plant from the planter, it would not prevent any algae growth that I can see. You could use a smaller chbag, or equivalent, as a grow bag to keep out light.

You are correct about the opaqueness, but then the video would be even MORE boring. It has not been a problem for me yet on this system, but if it wain sunlight, I personally would use an inverted chip bag as shown on the DWC unit. This works very well, I have found.

I also want to see if the green plastic would help prevent algae forming in the planters by filtering out some of the other wavelengths...just 'cause.

I purposefully left out any filter as they will clog if not cleaned. Any debris that makes it through the tube will be discarded with the waste water. Thereservoir simply unscrews for easy replacement. For this reason, in a new system, I would probably use rigid tubing such as 1/2 inch CPVC to bettercontrol water flow and prevent dips where sediment can collect over time.

Jack of Most Trades says: Sep 23, 2008. 8:50 PM REPElegantly simple. So how's the Dracaena enjoying it, and what did you put in your solution?Really nice job, I may give this a try this winter.

wiley coyote says: Sep 24, 2008. 2:23 PM REPThanks.

The small one is dying off completely, but I expected that and the spirally one is still growing. They were in a display that starved the roots of oxygen anthe stalks started to rot. It's "died" twice already, so I'm letting nature takes it's course.

I used a "complete" nutrient sol'n from a hydroponics store at one half the recommended concentration just to be gentle. I've noticed that there's somereally slow release, guaranteed not to leach or burn, granulated products out there these days, with micro nutrients, and was going to give that a try assupplement in the gravel itself. Just can't leave well enough alone you know. The goal would be to change only water and feed soil bound plants with th

waste.

I'd really like to see what you come up with. You should see the crap in my head now, it's even simpler. ..sort of, but I've got to stop somewhere. If onlythe plants could grow REALLY fast.

Jack of Most Trades says: Sep 25, 2008. 7:50 PM REPThanks for the reply. I have 3 canes that have been existing in water and gravel for about 4 years and I'm looking for some way to give 'em a "jolt"and see if they'll grow some.

wiley coyote says: Sep 25, 2008. 10:50 PM REPThis'll probably do it. I've noticed two new leaves since it's been in the system and it was not growing at all prior to that.

ansem227 says: Sep 25, 2008. 6:50 PM REP

Yeah i like the idea. it can be improvedi think i might try and make this instructable and ill post the details. i might try some ideas from this site.

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