Thanks for taking the time to read about my experience during this years opening. I have an inground pool, standard rectangle, with a hayward pump, hayward sand filter, and an aquabot. Last year I had a late closing, and I didn't close the pool right, as I was in a rush. That has now come back to bite me because I am having some serious problems this year.
My sand filter was not winterized properly. When I opened this year, to a greenish/black pool, I noted the crack where the pressure gauge goes. I patched that up and got a new gauge to stop the leak. I then started the shock and clarifier process.
I noticed that on my first backwash, when rinsing, sand was filling up in the watch glass on the filter. I did not see the sand on the backwash or note it coming out of the waste line. Only when I was on rinse did I see the sand coming out. When I switched back to filter I heard the sand being shot out of the return line. This happens every time I rinse the filter, its not as much sand as before, but sand is coming out.
After two weeks of filtering I still have murky water. Then yesterday my robot vaccum took out bags full of sand on the pool floor. I started scraping the bottom of the pool with my leaf net and was able to take several bags of sand out that way as well. I think I have all the sand out now but the pool water is still very cloudy and wont clear even after shocking last night.
Some other things I have noticed.
Normally the pressure on the filter goes way up after using clarifier - I am not getting that this year.
My PSI has been steady and unmoved while filtering at 12 psi but when I backwash I get 5 psi. Certainly not as strong as in years past.
The pool never once backwashed out dirty water.
I did some research on this and it seems like I could have a broken lateral? I've already replaced the spider gasket.
Any ideas of what I should do next?