JimT

I am having trouble identifying the source of air bubbles in my spa. All air valves are off, and there are no bubbles when the pump #1 diverter is in either position, nor are there bubbles when pump#2 diverter is in the B position. The air valves all work as they should. However, when I move #2 diverter to the A position, bubbles mix in with the flow out of the footwell jets (where are should not be coming out at any time) I have replaced both diverter valves, and there does not seem to be a leak anywhere. Any thoughts on where I should look for a source of air intrusion into the flow for this one diverter position? Thanks! Jim