Project Dry Basement A Description of the …...• Project Dry Basement was developed to install...
Transcript of Project Dry Basement A Description of the …...• Project Dry Basement was developed to install...
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Project Dry BasementA Description of the Backwater
Prevention Program
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City of Columbus entered into a consent order in 2003
The Mayor asked the Division to develop a program to address flooded basements
Project Dry Basement was developed in 2004
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• Project Dry Basement was developed to install backflow preventers in private residents
• There were several issues to consider:
• Installing valves on private property• Develop a Home Owners agreement• Determine who is eligible for the program• Identify the home owners responsibility• Remove clear water sources from the
service line
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Eligibility Requirements for a valve
• Home owner must report a flooded basement to the City
• The flooded basement must be a City responsibility
• Stoppages
• Sewer headed up due to heavy rains
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Since the inspection of the program
• 2298 residents have been made eligible
• 823 home owners have returned the agreement and had valves installed (36%)
• The 36% has stayed fairly consistent through the program
• Home Owners do not like to have their basement tore up• They do not like the home owners agreement• Rentals do not like to have a code inspection done• They do not like the idea of not being able to use water
when the valve is closed
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The reminder of this presentation is going to focus on the valves we have installed and the Pros and Cons of each valve
Our Disclaimer
• We are not recommending or discouraging the use or purchase of any valve. We are discussing the experience we have had with installing and the use of these valves.
• Please keep in mind that you may have a different experience with these valves. Please feel free to offer any experience you may have.
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Valves we have considered or used
• Inexpensive PVC Check Valve -0• In-Line manual shut-off gate valve (Dual
valve) -0• JR Smith Flood Gate Valve – 242• Main Line flapper valve – 196• Clean Check Valve – 270• Spears Backwater Valve – 19
• Sump Pumps installed - 265
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Inexpensive PVC Check valve
• 0 Installed• PVC flapper• History prior to PDB • Most causes for the valve failing was a
broken, stuck or missing flapper
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In-Line Manual Shut Off Gate ValveThe Dual valve
• 0 installed• History prior to PDB
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Procheck
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Additional Things to Consider• Maintenance – Maintenance – Maintenance• Where the concrete floor is cut use bentonite
around the concrete joint to prevent ground water from leaking through the joint.
• Size of the foot print of the valve pit.• If a sump pump is necessary you must have a
dedicated circuit in the electrical panel.• Make sure you have a positive outlet for the sump
pump.• You only have to protract what drains are in the
basement.