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Back water valves and backflow preventers.
They’re often simple, mechanical devices that are both inexpensive to purchase and easy to install.
Protects low areas or basements from backflow or waste from street sewers
3.9 out of 5 stars 44.
A backwater valve (sometimes called a backflow or sewer backup valve) is a valve you can install on your sewer line and is designed to allow water or sewage to flow only one way, that is, out of your house.
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First, measure the size of your drain.
The oatey® backwater valve is designed as a sewage check valve to prevent pumped water from flowing back into the basin.
This 1 inch lead free double check valve assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements.
Backflow prevention devices and backwater valves are the most effective way to protect your home from sewage floods.
Is it a 3” or a 4” drain?
Remove the 3” device from the 4” adapter and discard the adapter
Prevent sewage or any other fluid from flowing back into your water system with the oatey 4 in.
The valve contains a flap that allows water to exit the home, but closes to.
If you need a backflow prevention device, be sure to contact a trained and certified plumbing expert.
A floor drain backwater valve or mainline abs or pvc plastic backwater valve can save the day.
Anytime there is a sudden heavy rainfall, the city sewer lines can become overwhelmed, causing water or sewage to flow back towards your home.
Designed for use with 4 sch.
Dual checks/dual checks with atmospheric vents.