Sand spear screens-faq

Sand Spear Screens

FAQ for -

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PH - 1300 133 000

FrequentlyAsked Questions

Bore Casing & Screens Pipes & Components Environmental Drilling Water Treatment Safety Products Sand Spears Pumps

Question 1 -

What sort of locations are good candidates for sand spear use?

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PH - 1300 133 000



Answer 1 - The main requirement is a location on sand, near a beach. Clay, shale, sandy loam and other ground matter are not able to facilitate use of sand spear. If a neighbour uses a sand spear less than 6 metres, it is likely that you, too, will be able to use a sand spear, although sand spears can vary in depth, quality and quantity between nearby sites.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 2 -

What type of sand spears are there?

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PH - 1300 133 000



Answer 2 - PVC slotted pipe

PVC Wedge Wire

Stainless wedge wire

Mesh wrapped

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 3 -

How much water can I pump from a sand spear?

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PH - 1300 133 000



Answer 3 -

A standard system can give you a minimum of 6 L/M

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



It also depends on the ground conditions where your sand spear in installed, On a beach such as Fraser island you could extract as much as 44 Liters per hr. In some installation 88 liters or 1200 gphhave been achieved.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 3 -

What sizes do they come in?

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PH - 1300 133 000



Answer 3 -

Std is 50mm dia. By 600mm long

100 -150mm dia. is available

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 4 -

What sizes do they come in?

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PH - 1300 133 000



Answer 4 -

The most common size is 50mm diameter by 600mm long with a open width of 0.25mm to let the water in.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 5 -

What materials are they made from?

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PH - 1300 133 000



Answer 5 -

PVC.&

Stainless steel

1300 133 000 0457 819 610 www.deps.com.au

The most common size is 50mm diameter by 600mm long with a open width of 0.25mm to let the water in.

PH - 1300 133 000



Question 6 -

What material do I need for my sand spear?

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PH - 1300 133 000



Answer 6 - This depends on the Depth of setting and the method of installation

E.g. Pvc is not recommended for Drive Installation

See- Installation manual

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 7 -

What open width do I need ?

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PH - 1300 133 000



Answer 7 -

This depends on the sand particle size. Some sands are much finer than other areas.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



PVC slotted Casing is 0.4mm slots

PVC Wedge-wire is 0.25mm slots or open width

Stainless Wedge wire is 0.15mm width

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 8 -

Do I need a License to Install my sand spear?

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PH - 1300 133 000



Answer 8 -

Please as every state or water region has their own rules and regulations, Check your local water authority

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 9 -

How deep do I set my sand spear?

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PH - 1300 133 000



Answer 9 -

This depends on what depth the water table is but usually the idea is to set the top of the sand spear to have 600mm plus of water above it.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Answer 9 -

Note- If this is close to the sea ocean check at low tide.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 10 -

Can I install the sand spear myself?

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Answer 10 -

This depends on the water authority in your area and if it’s under 3m in depth, then there is usually no issue. Please check before starting.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 11 -

How do they work?

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Water In

Outlet

PH - 1300 133 000



Answer 11 - The spear point has slots or a open aperture of approximately 0.25mm wide this is to stop any sand from coming into the spear or screen and allow clean water to enter the inside diameter, clean water can then be pumped up to where you need it.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 12 -

Will they remove salt ?

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PH - 1300 133 000



Answer 12 -

No. You will need a desalination unit for this.


PH - 1300 133 000



Question 13 -

How do I install my Sand spear?


PH - 1300 133 000



Answer 13 –

There are three methods for installing sand spears Jetting, Bailing and Driving for more information on these methods, see our Installation guide

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 14 -

What other names are they called?

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PH - 1300 133 000



Answer 14 -

Sand screens, spear points, piezometer, water spear, drive point, water screen, drive points, well screens; spear, sand blocker screens and wash down screen

We can slot, Upvc, MPVC, Abs, Poly , HDPE Pipe, Fiberglass, Steel, Gal and Stainless pipe

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 15 -

How much do they cost?

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Answer 15 -

They range from $75 to approx $500 each.

You can buy online on our website.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 16 -

How to I get the water out of the bore?

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PH - 1300 133 000



Answer 16 -1: Use a small bailer.2: use a hand pump.3: Connect a Std. small House hold pump.4: A 12 volt submersible pump that fits inside the spear.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 17 -

How much water can I get out?

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PH - 1300 133 000



Answer 17 -

Stainless Steel sand spear- 0.15mm slot -20 L/MPvc wedge wire – 0.25mm slot – 17 L/MPvc slotted sand screen – 0.4mm slot - 6 L/M

This calculation is using a std velocity of 1.8m/s

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



Question 18 -

Can I drink the water?

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PH - 1300 133 000



Answer 18 -

Before drinking you should have the water checked by a qualified tester.

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000


Thank you for taking the time to look at the information we have created for you,We hope this will be of assistance to solving your piping, drainage , cleaning and drilling challenges.

If you have any more questionsPlease feel free to contact myself or one of our team

1300 133 000 0457 819 610 www.deps.com.au

PH - 1300 133 000



• For more Information

• go to www.deps.com.au

• 0r contact us on

• 1300 133 000

• 0457 819 610

• [email protected]

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PH - 1300 133 000


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PH - 1300 133 000


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