While reading the forums, I discovered that I have an error in my plumbing that is probably the cause of some minor problems I have had over the years. My spa return and bypass for spa overflow are plumbed after the swg. This results in the spa becoming overchlorinated and having a slightly higher ph than the pool. In the past, I have had some calcium precipitation in the form of flakes, mostly in the spa. This was probably the root cause. The plaster still feels okay.
The plumbing is a little tight around the return plumbing on the pad. What I can do is at least have a small bypass plumbed from prior to the swg over to the spajet loop, which is currently a dedicated closed loop with its own plumbing. I could plumb in a check valve along this same bypass line so the jet pump doesn't lose prime or drain back into the pool when the filter pump is off.
Is this important to do now that I've found it or should I leave well enough alone?