What is causing these bubbles in my spa?

mas985

TFP Expert
LifeTime Supporter
May 3, 2007
15,408
Pleasanton, CA
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
Are the bubbles coming out of that suction port or a return nearby? If they are coming of the return, it could be the SWG. Turn it off and see if goes away.
 
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