Troubleshooting Spa/Pool Water Level

Pool pumps, pool filters and the plumbing of
swimming pools. Sand filters, cartridge filters,
fabric filters and alternative filter media.
Benny J
Pool Newbie
Pool Newbie
Posts: 1
Joined: Fri 18 Jul, 2008 11:16

Troubleshooting Spa/Pool Water Level

Postby Benny J » Fri 18 Jul, 2008 11:46

Hey all - looking for some insight: I bought a house about 3 months ago that has an in-ground concrete/plaster pool and spa combo. The spa has the typical barrier wall w/ overflow configuration where it dumps into the pool while the pump is on or when there is a high bather load. The spa is built so that the water level in it should sit higher (by about 6 inches) than that of the pool, even when everything is sitting idle. My problem is that when the filter cycle completes each morning and the pump turns off, the water level in the spa slowly drops over a few hours until the water level in the spa is even w/ the pool. This exposes a 2 to 3" high band of plaster below the water-line tile and also the top of the first bench.

I know exposing pool plaster for extended periods of time (and letting it bake in the sun all day) is a bad thing, so I've been trying to fix this. So far, I have rebuilt one check valve on the pump discharge to the spa, but this has not remedied the problem. I think it has to be a plumbing issue in conjunction w/ the pool rather than a leak, b/c the water doesn't ever drop below the pool water line. Any thoughts?


muss08
Swimming Pool Superstar
Swimming Pool Superstar
Posts: 332
Joined: Fri 07 Mar, 2008 20:56
Location: Maryland

Postby muss08 » Fri 18 Jul, 2008 16:26

There should be another check valve on the suction side. When the system is off water can move both ways. Definitely not a leak just the water wanting to equalize.
APSP Certified Service Pro
Jandy Tech School
Pentair Tech Training
Raypak Heater School
5 yrs experience

Return to “Pool Pumps, Filters, Plumbing & Piping”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 0 guests