I am in Mexico and opened my pool just about the time most up north are closing theirs. I converted last year to a Hayward EcoStar pump and so far it is doing a fabulous job of filtering. I run it for 14 hours a day at 1000 rpm and it uses about the same electricity as a 100 watt light bulb. My electric bill has gone down alot and the filtering has gone up alot.
Every year when I exit Mexico I close and drain the pool for the next four months until my return. I have been leaving the sand filter full of water for that four months. This year when I filled and started the pool the pump seems to be driving sand through into the pool when it primes and when I back wash it is in the water that comes out. The pump always primes at the same speed, what seems to be 3450, and I can't seem to control that in the controller menu but I can control all other speeds. The sand doesn't seem to come through when I am filtering at 1000 rpm. I have yet to try putting a sock over a jet as I haven't found a sock. (don't wear sock and shoes here).
Any suggestions as to what I might try to aleviate the problem or just what the problem might be would be much appreciated and a big Thank You in advance.
My water is sparkling clear blue.
CC 0 (working on that)
CY 3 (working on that)
TFT test kit