Backwater Valves; presenting the new, innovative valve product designed to more economically solve flooded basement and sewer backup problems.
Raw sewage in your basement. Can you imagine it spewing out of your toilets, shower stalls and sinks? With record high precipitation in many parts of the nation, some families have experienced such unfortunate events. These backups not only cause damage that is difficult to repair, but also create dangerous health hazards. A floor drain backwater valve or mainline backwater valve can save the day. These check valves are also sometimes referred to as backflow prevention valves or backflow preventer valves .
While cities and municipalities work relentlessly to clean and inspect sewer main lines, it is still possible for a sewer main to plug up and allow water and sewage to flow into the dwellings it serves. But help is here! By installing the award winning Mainline Fullport Backwater Valve (sometimes referred as a Backflow Preventer ) in the main line to the sewer, property owners reduce their exposure to such an incident to almost nothing.
Who’s at risk? Your home or building may be susceptible to sewage backups if the lowest drain is less than 24 above the nearest upstream manhole. Most building codes require owners to install a backflow prevention valve to minimize the chance of flooding at properties with drains that meet the specification mentioned above.
How does it work? A backwater valve can be installed in the basement at the exit point from the home or building, or in the sewer lateral outside of the building.
The “lateral” is the underground pipe that carries sewage from private property to the city�s sewer main. The backflow valve is installed downstream and prevents sewage from backing up into the lateral beyond ( above ) this valve.
( SPECIAL OFFER. Access Box at reduced charge with the purchase of a 4963 ABS or PVC Backwater valve – an $89.00 value)
When installing in a lateral, the backwater valve is placed in an access box to make maintenance easy.
Backflow prevention valves (and all safety check valves for that matter) should be inspected on a quarterly basis and anytime you think they have closed. With our award-winning design, patented backflow valve, you can simply look through the clear plastic lid for easy visual inspection and remove the screw-off cap to clean out any debris!
Note: This type of check valve should not be confused with and does not replace the sewer trap that prevents sewer gas from entering a building where it is installed.
Measurements, Specifications and IAPMO Certifications
Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems. SPECIAL OFFER: Mainline Backwater Valve Combo with Access Box ($89.00 value if purchased separately) Valves without Access Box are also available with a slight shipping discount in the price.
Protect Your Home with a Backwater Valve
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backwater-valves.com is independently owned and resells products produced and manufactured by Mainline of Canada and assumes no liability for the installation of backwater valves and related products.
Be sure to check with the plumbing authority in the municipality in which your valve is to be installed to insure that your installation is in compliance with local code, and be sure have your valve inspected by your local plumbing inspector after installation. Inspect your valve frequently; the Backwater Valve through its clear plastic housing top, and the Adapt-A-Valve, by removing the gate cassette.
Pipe end-to-end, the Adapt-A-Valve takes up 6 of run in your line and the outlet is 1-1/2 LOWER than the inlet, so in just 6 the level of the pipe at the outlet side needs to be 1-1/2 lower.
Pipe end-to-end, the Backwater Valve takes up 12 of run in your line and the outlet is 3/4 LOWER than the inlet, so in just 12 the level of the pipe at the outlet side needs to be 3/4 lower.
Depending upon the amount of slope in your line (2% minimum is required for proper operation), you may need to replace several feet of pipe downstream from the valve to average out this loss of fall.
NOTE: New Straight-Fit and ML-FR4 require less slope. (refer to detail pages for these products)
High-volume inquires are directed to Tom at Mainline
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