My spa drains when the pool pump is off. Will adding or replacing one of these fix this?
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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.
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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??
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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.
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will this check valve work with flex lines? What parts do I need to use this on a flex line operation.
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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.
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The unions at the bottom of the check valve are still leaking. We changed the o-rings but it's still leaking. what could be wrong? Do we need another check valve with the new unions/nuts?
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Joanie, If the check valve is still leaking after replacing the o-rings, there may be dirt/debris in the threads of the unions. If there isn't any, I would recommend replacing the check valve.
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what is the over all length of the valve. I need to know how much pipe to cut out and if I even have the room left to attach it.
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Hi Andy, The length of this valve is 8.345" including the unions.
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When my pool pump is off the water flows back to the pool and the pump takes about 20 min to prime when back on. Can I install a check valve between the pump and the filter (sand). If installed before the pump and the basket there may be a problem with leaves, etc in the check valve.
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It is more common to install a check valve in front of the pump and as long as the skimmer basket is catching most of the leaves and debris then it should be fine.
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Is this valve corrosion resistant and can it be mounted vertically?
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Yes, it can be mounted vertically, but keep in mind that when this valve is horizontal the spring tension is 1/2 pounds. Due to gravity the spring tension might increase so the pump will have to have a high enough flow rate.
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Is this a flapper valve or a plunger type valve as l will be mounting it horizontally and a flapper valve will be better suited for the application.
Cheers
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Hello, this system uses a spring valve mechanism.
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Does this check valve come with, or be able to use, Viton O rings? I ask this because the OEM O rings are not bleach resistant and will deteriorate within a couple of years.
Thank you,
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Hi, Guy. This o-ring does not come with or have replacement viton o-rings.
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Hi. Does anybody know the body length with the unions removed? My valve needs replacing and if I can just slip the new body in to replace the old valve body that would be WAY better. The spring check valve I have now (Flo D-2466) looks to be obsolete with no definitive replacement. My valve body is 5-3/16" end to end (unions removed).
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Hi, Dave. This Check Valve is 5.12" without the unions.
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Is there any pressure loss data available?
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Hi, Hans. That info is listed on pages 25-28 of the NDS 2018 Product Catalog.
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is this valve usable with chlorinated water ?
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Hello. The White Check Valve 1.5" - 1/2 lb. w/ Unions - 170015 is compatible with chlorinated water.
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