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Pool Sand filter
My pool has been green and cloudy since I started running the pump two weeks ago. I think I have two things going on, first my pump propeller is slowly chewing itself up. It still is working but the flow seems down.
Now I have not changed the sand in the filter in like 5 years nor opened it up. I know when I back wash, I always lose just a couple spoon fills of sand. Anyhow, the pump runs and the pressure has been at about 5 PSI, was always at 10 until it got to 20 where I would back wash. I definitely getting algae pumping back into pool. Not a ton but enough to make issues.
Do people add sand to filters or just replace all of it? How often is the sand replaced?
These 1st world problems are horrible.
Thanks.
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