I mentioned this in another post, but I'm still trying to figure this out. Starting about a week ago, I noticed some bubbles and air coming from my return jets (like they were sputtering). The only reason I really noticed it is because I switched the valves to put the return water to only my spa (overflow) and the three pool returns which increased the pressure a pretty good bit to the pool returns especially, previously I have the majority going to my two waterfalls (50%), spa (35%), and pool return jets (15%). Ever since I turned off the waterfalls and increase the return output of my jets, I noticed the air bubbles and sputtering. I put the waterfalls back on today, and since the pool return pressure went down, I didn't notice it. I've check o-ring and unions on both side of salt cell. I checked the gasket on the lid of the pump basket and it appears to be on there good. Not really sure what else to do or check? Any ideas? Will it cause any problems, beings air is getting in it from somewheres obviously? The pump basket primes up fine, and water flow/pressure through salt cell is really good, so I'm just confused as to where it's coming from. I'm trying to not have to pay an arm and leg for a pool guy to come check out what may be an easy fix. Also, water level at sklimmer is good so it's not coming from there either.