Water from spa draining

Pepperdinegal

Well-known member
Mar 20, 2021
123
Las Vegas, NV
In the ongoing saga of my parent’s pool. They had their pump replaced about a year ago and sometime in the last few months, whenever they turn off their pump, about half of the spa water drains into the pool. Then when they turn the pump back on, the spa fills back up. I’m here for the weekend and want to try and help figure this out and maybe even fix it if it’s within my capabilities.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,626
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Look for the check valve on the spa line. Might be on a make up line or the actual spa return line. Post a picture of it.
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
22,607
Bedford, TX
P,

What you describe is the typical bad check valve on the Spa make-up line..

If you do not know where that is, show us some pics of the plumbing around the Return valve that sends the water back to the Spa or back to the Pool..

Thanks,

Jim R.
 

Pepperdinegal

Well-known member
Mar 20, 2021
123
Las Vegas, NV
Here’s the setup. Is it as simple as taking the front of the valve off and replacing with a new one?AB750174-303F-4785-93E2-E699DD817A08.jpeg
 

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Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
22,607
Bedford, TX
P,

I don't see a check valve.. :scratch:

Would normally be in one of the two pipes on the right going into the ground, after the Jandy valve with the black handle.. One of those two pipes goes to the spa.. It should have a check valve in that line somewhere...

Thanks,

Jim R.
 

Pepperdinegal

Well-known member
Mar 20, 2021
123
Las Vegas, NV
Hmmm, my dad said they redid some of the piping when they installed the new pump. Is there a place where I could install one or would I have to have someone run a new line?
 
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