I have a Blueridge model 600-66 spa.....when I turn on the pump I get good water flow thru all the jets, but I dont get any air bubbles. I purchased yhe spa used and Had to put on a new pump and heater element.
If I loosen up the hose to the pump a litte, I get air bubbles, but when I tighen it up, they stop.
Whats wrong???

The pump does not control air bubbles in your spa, either the air blower or the air knobs designate air flow in the entire system, you need to have the pump running before the air knobs will have any effect.