I have bursts of tiny air bubbles coming out of one of my 2 return lines. Everything i have read indicates that this is a sign of a suction side leak. I notice that there are a fair amount of bubbles in my pump. When i close the valve to the return line that is pushing air into the pool the bubbles in the pump disappear and the pump is crystal clear. when i open the valve the pump immediately fills with bubbles and air starts to enter the pool again. I am thinking that this would indicate a supply side leak? I appreciate any suggestions.
I have a 30,000 gal inground liner pool with a brand new Hayward pump and 2 year old filter.