Check Valve Help!

[TazJMT]

The gasket material is very important. Some common rubber materials used with potable water are not at all compatible with the high level of chlorine found in 'leak-back' from a trichlor feeder. Nitrile rubber and neoprene are both common but are not at all resistant to acidic solutions of chlorine. EDPM is much better, but Viton (a fluorocarbon) is best. When I've installed valves in commercial settings, Viton was always my go-to elastomer if it was available. I think that particular check valve does have a Viton O-ring seat (often a weird brown color).


Anyhow, I'm glad the check valve you had turned out not to be a problem.

I actually couldnt see any color for the gasket on the new check valve. It was hard to reach my finger all the way in and I know there must be some sort of gasket, but i couldnt see it or feel it. The directions on this valve specifically mention stopping corrosive liquids/gasses, so that gives me hope that it will last some length of time. I'll update in a few weeks to see how it is lasting.

Hopefully, the FLO valve i used last year that surely failed within a few weeks didn't really mess my filer up too much

[PoolDoc]

I don't think the back flow from the feeder would be damaging to most filters.

[TazJMT]

I don't think the back flow from the feeder would be damaging to most filters.

Oh-well then I have to ask-why in the world was it suggested by so many people that I use one if the chlorinated backflow water wouldn't do damage? That's frustrating!

[PoolDoc]

It destroys heaters and any equipment with metal such as a gate valve. It would probably damage an SWCG.

I personally never used check valves when I installed feeders years ago. BUT, in this market pumps usually run 24/7 (afternoon thunderstorms mess pools up on a daily basis), and it wasn't usually an issue.

[TazJMT]

It destroys heaters and any equipment with metal such as a gate valve. It would probably damage an SWCG.

I personally never used check valves when I installed feeders years ago. BUT, in this market pumps usually run 24/7 (afternoon thunderstorms mess pools up on a daily basis), and it wasn't usually an issue.

SWCG? Whats that

[PoolDoc]

Salt Water Chlorine Generator.

SWG is more common, but those devices do NOT generate salt water, so I kinda banned that term here, among the mods.