I have a concrete in-Ground spa, 6' Hex, with 5 jets, with overflow into the pool, same level as pool, equipment ~35' from spa, common pump for pool and spa, blower for spa.
My spa was not making allot (spitting and sputtering on random jets) of bubbles, the blower was making allot of noise so I installed a new blower (2HP) and check valve (spring load 2Lbs). That made some improvement (no noise..nice) but now I get bubbles/air coming from only 2 or sometime 3 jets. At one point I had switched the jets to a different size, from ~1/2" opening to ~1" opening, I now don't remember which ones are the correct original ones. Is there a standard?
Can anyone give me some advise what I need to do to get the other jest to bubble?