Spa losing water when floor skimmer is On


Active member
May 3, 2020
Plano Texas
Hey all, new homeowner and a first time pool owner. All was fine until yesterday. We have a pool spa combo with the spa overflowing into the pool. The Spa lost about 6 inches in about 30 minutes yesterday. I turned the pump off and the water level remained the same. I turned the pump back on and turned the floor skimmer off and the spa water level rose about 4 inches. When I turn the floor skimmer on the spa water level drops. Any clue as to why it only drops when the skimmer is on?


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Welcome to TFP.

Post pics of your equipment pad and valves. We need to see how your plumbing is set up.

Please create your signature with details of your pool and equipment.

What do you do to turn your floor skimmer on and off?


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

What the heck is a "floor Skimmer"? Do you have an in-Floor cleaning system with pop up heads or ?????

Pics would be great.


Jim R.