Part # 170015
Alternate Part #'s 26-350-1144, NDS1700-15
True Union Spring Check valve. Easy entry removable body, for visual inspections or cleaning. Available in clear. Each valve is specially designed to be disassembled by unscrewing the nuts in line leaving the tail pieces solvent cemented to the pipe. This true union allows you to remove the body for repairs, or cleaning, even providing the opportunity to change the body or spring tension.
Sizes 1½" & 2" IPS
Standard spring tension ½ lb. ( other spring loads available on special request )
EPDM seal and "O" Rings
200 PSI static pressure rating @ 72ºF
Stainless steel spring
Valve Body Length = 8.345" (Body Length Includes Unions)
Excess solvent trap
My spa drains when the pool pump is off. Will adding or replacing one of these fix this?
Yes that very well may solve the issue. Per gravity, a raised spa will drian into the pool if the check valve is bad or if there is not one there.
My raised spa drains back to the pool when the pump is off. My question is where do I place the check valve at? Do I put it after the chlorinator (check valve being the last thing out) or do I install it between the heater and chlorinator (check valve being second to the last thing out) chlorinator being last thing out??
Cheryl, You will need to install the check valve after the chlorinator, the check valve should be the last thing on the return to the Spa.
will this check valve work with flex lines? What parts do I need to use this on a flex line operation.
Hi Jerry, Check valves are not recommended to use with flex pipe, you will need the use PVC for the check valve then connect the PVC to the check valve using a 2" slip x slip coupling. You can find such coupling at your local hardware store.
(5 out of 5 stars) Check Valve
Reviewed By: Bill Saumier from Spring Valley, CA ()
Pros: Good quality product exactly as advertised.
The check valve works great and is easy to install. If you order this from the pool store is will cost 2 time the cost.
(5 out of 5 stars) No More DE on the Pool Floor
Reviewed By: Inyo Customer ()
I was always getting DE from my filter leaking back through the main drains and onto the pool floor. I put one of these between the filter and the pump and problem solved. Works great and easy to install.
(5 out of 5 stars) Made it easy to install an inline chlorinator
Reviewed By: Mark A. from Stafford, VA ()
Pros: Easy to install, sturdly built
Cons: Unsure about corrosion resistance to chlorine
I used this as a check valve to protect my pool heater from an in line chlorinator. It's not the one recommended by the manufacturer of the chlorinator(Rainbow), but theirs wasn't built with the screw on unions. This made it really easy to install the chlorinator, and will make any future repairs equally easy.