Latest Frequently Asked Questions
How thick should I pour concrete below shower pan liner?
This depends on the quality of the cement products you are using and the minimal thickness recommended by that specific manufacture. The normal rule is ¼” thick starting at the outside of the flange, then the concrete is sloped up and away from the drain at ¼” per foot.
What solvent cement do I use for seaming CPE liner?
Oateyweld
What solvent cement do I use for seaming PVC liner?
Oatey X-15 Shower Pan Liner Adhesive
What adhesives are approved for use with the PVC and CPE liners?
Oatey has approved the three following Liquid Nails products for this application.
LN - 609 / Panel & Foam Adhesive
LN - 715 / Tub Surround & Shower Adhesive
LN – 915 / Tub Surround & Shower Wall Adhesive
What pipes can a Mushroom Vent Cap be used on?
Mushroom Vent Caps can be attached to any vertical sanitary vent pipe, in order to keep debris from falling into the pipe. This doesn’t apply to septic tank vents which rise vertically out of the ground, and then turn down (looking like a candy cane).
Can a Saddle Tee Kit be used in a project when plumbing inspections are necessary?
No. This product is not intended for use in any plumbing system where plumbing codes are enforced.
Can a sewer cleaning cable (snake) be run through the Backwater valve?
No. As the cable and cutter pass through the valve, the flapper would be damaged. Once the cable passes by the flapper, it would not be able to return because the flapper would close down on it. This would cause permanent damage to the flapper. Cleanout Tees should be installed on either side of the Backwater device.
Can I use the plumbing fixtures within the home during a heavy rain storm if a Backwater Device is installed?
You will have to pay attention to the drains for signs that the Backwater valve is closed. If the valve is closed the water will not be able to pass through it and will back up through the lowest drain in the home (floor drain or shower base in the lowest level of the home). The drains will also gurgle as water is being let out of the fixture.
Does the Backwater valve need to have routine maintenance performed?
Yes. After every heavy rain storm it would be a good practice to open the access cover and make sure no debris was lodged in between the flapper and body, which would not allow the flapper to close. If there are not any storms in a 3 month period of time, it is also recommended that you inspect the flapper to make sure that no debris from normal use is lodged or stuck between the flapper and valve body. This will ensure the valve can seat properly if a storm passes through.
Can a Backwater valve be installed vertically?
No. The flapper would remain in an open position without any backflow protection.
How do you vent the collection barrel when hooked up to Mystic Rain Water diverter?
You should contact the barrel manufacturer for their recommendations.
How do I stop the water from coming out of Mystic Rain Water diverter when the barrel is full?
You can disconnect the hose and insert the red plug.