Big Bubbles with Solar
We are relatively new to our home and we are first-time pool owners. Lots to learn!
A few months ago we notice that when the solar heat was on, we had huge bubbles coming from where the water enters the pool, and on the second floor we could hear it "churning." A "solar guy" recommended checking our filters, and sure enough, our filters were filthy. We had the filters changed and the solar was running smoothly.
Until today. Now it is bubbling and churning again. Our pool was serviced yesterday -- could the pool guy have done something to cause this? Yes, I know the obvious answer is to call them, but when I called our pool service company about the churning the first time, they said they didn't know anything about solar, they just did the pumps and filters (as an aside, is that normal?).
Any thoughts or suggestions? TIA.