I bought a house with a pool and have been learning and doing my own pool care. I have a sta-rite crystal flow (300 lb.) sand filter. I had a new pressure gauge added when the pool tech was giving me a pool school. He showed me how to backwash the filter and we read the gauge afterwards when the pump was running. After backwashing, the gauge was ready at 10 psig. That was 3 weeks ago. When I read the gauge it is still at 10 psig.
-I am wondering if this is normal for there not to be any change in pressure across the filter after this long?
- Also, when I look in the water at night, there are particles floating everywhere. I have my chemistry balanced and have just done an 85% water exchange over the weekend. I know that a sand filter doesn’t filter as fine as cartridge or de filters. But should I still see little particles floating everywhere?
-could i need to replace some sand? how can I tell? The filter is accessible due to threaded fittings.
thanks for any input! Checking off various things as I go and as I learn more! Loving the site and pool math app
-I am wondering if this is normal for there not to be any change in pressure across the filter after this long?
- Also, when I look in the water at night, there are particles floating everywhere. I have my chemistry balanced and have just done an 85% water exchange over the weekend. I know that a sand filter doesn’t filter as fine as cartridge or de filters. But should I still see little particles floating everywhere?
-could i need to replace some sand? how can I tell? The filter is accessible due to threaded fittings.
thanks for any input! Checking off various things as I go and as I learn more! Loving the site and pool math app