Got a problem with air bubbles in the pump basket when I have my Jandy 3 way valve set to skimmer. I have two suctions, the skimmer and one port in the deep end, then a return jet by the stairs in the low end. When I set the valve to close skimmer 100% the air bubbles in the basket disappear, which tells me no air leak in that pipe run. When I set the valve back to the middle position which has both suction pipes 100% open, I get the air bubbles back. When I set valve to skimmer 100% and deep end suction closed I get alot of air bubbles.
So I believe I have a leak in the pipes going to the skimmer. I tries running water over each connection to see if it would make the bubbles disappear, no luck. Then I temporarily used self fusing pipe tape on each connection, one at a time, to see if I could see where the leak is but could not find it. Not sure where to look next. Could it be the Jandy valve?
Thank you in advance for any help.