I have lot's of air getting in the pump when it on Pool mode.
When i turn the valves over to SPA mode all the air goes away and the pump runs quite with maybe only 1 little bubble visable.
The second i turn the section side back to pool bubbles lots of air and the pump kinda surges .
I replaced the entire suction side (above ground level ) jandy valves pipe and fittings going into the pump.
can't figure it out ??? Could it be a broken suction line below the ground !!!!
any Ideas !!! Im stuck !!!