I came out this morning and all I could hear was the gurgling sound and my polaris wasn't moving. Somehow I'm getting a ton of air coming into my pool and spa. During filter my supply comes from pool and return is about 50/50 to pool and spa. In testing I turned it to only supply/return to spa, no bubbles. I turned it to supply from pool and 100 to spa, no bubbles. So I don't think it is my supply line. I'm not seeing any water loss which this is where I'm thrown. How can be getting all these huge bubbles and not having any water loss. Where could all this air be coming from? Thanks