Hi, we got an inground pool last year with an attached spa. Earlier this year, I noticed that in the spa, the bubbles coming out of the valves completely blocked the person's legs. Yesterday, I noticed that you can now see legs and the water is not nearly as opaque from the bubbles. The pressure seems to be pretty good, but something has definitely changed in the few months of operation. How should I go about troubleshooting? Does the pressure reading at the pump give any indication? If so, what's a normal range? Could this have anything to do with not backwashing frequently enough? And could this have to do with the water chemistry itself? The pool is too high in chlorine but I'm assuming that's an independent problem. Could that affect bubble flow?
Thanks for any help,