In Ground Pool Spa Water Level Changes When Operating

Apr 7, 2016
2
Houston, Texas
We are hoping for some suggestions. We have a inground pool and spa and the when we operate the spa, and turn on the jets with the air blower, it seems the water level will drop about 12" over a hour or two. It doesn't seem to go down when its just circulating lightly through the jets before we turn on the air blower. When we turn off the spa it levels back up to where it should be. Any ideas what we need to do to keep the level from dropping. With our pool equipment, we have a Spa Return Valve and a Spa Fill Valve we hacve to trurn to activate the spa. I'm not sure if that could be part of the issue. Thanks!
 
Show us pictures of your equipment pad and the valves in POOL mode and SPA mode.