Question about stopping reverse water flow

[SunshineStateofMind]

I have a typical Florida pool/spa setup. In the spa I used to have a water feature which I didn’t care for. It causes uneven flow back into the pool. It was screwed into the floor of the spa via PVC. I removed it and at night when the pump stops, the spa level drops by half. Is there a type of fitting I can put in the 2” ground fitting on the spa floor which will open when there’s water flow and close when there isn’t? Thanks!

 

[Andrew_D]

So this is a return into the spa?

Can you access that line at the equipment pad and put an inline check valve?

Or do you need to be able to put a check valve in the floor drain itself?

Andrew

 

[SunshineStateofMind]

I’d prefer to put it at the return on the floor of the spa, but I’m open to other ideas.

 

[Andrew_D]

I've seen floor drain valves but they are more like a backflow prevention valve for a basement floor drain. Water goes down, not up. You want the opposite. There's likely one out there, so hopefully someone will chime in!

If not, a one way check valve at the equipment pad would be easy to do. (I say that without seeing your pad!)

Andrew

 

[Chasarms]

it doesn’t matter where the check valve is on that line. It will prevent back flow. It probably makes more sense for it to be in the pad, if possible.

Just pay attention to the direction you install it and be 100% sure you understand the plumbing before you cut anything.