First post here and appreciate any advice. A quick backgound. I am a 20+ year, large custom home builder, most homes over 5mill. Seem to be at a stale mate with my pool builder on an issue and seeking some feedback.
8' deep foot ball shaped
65 ln ft of neg edge
Approx. 70 feet from pool to equip.
Neg edge trough is approx. 11' lower than pump equipment
Jandy pumps/variable speed
There are bubbles comig out of the wall mounted return in the pool. Pool contractor attempted fixes, all pipes were under pressure prior to equipment install. Pool has bee up and going about 2 months.
The bubbles were reduced about 40% by his fixes, but still unacceptable as it is very noticable when pool water is flat (no wind). After thier last fix, the tech tells me that the drop in elevation and size of the pump needed is actually pulling air out of the water it is so strong. I am not quite buying into that theory.
Any suggestions on what we may check?