We are owners of an Intex pool round 18 x 22 for about 3 years. We had a salt water pump that died on us after three years and the little pump that came with the pool was not strong enough to clean our pool this year. For some reason, we had an extreme amount of algae this year. We decided to buy an intex sand filter, an intex 2100 GPH Sand Filter. We hooked everything up and started the filter. We had to backwach about every two hours because there was so much algae in the pool. Well, we can finally see the bottom on the pool and the backwash indicator gauge is fine, but our water slows down after about 2 hours of pumping the water and we have to backwash it again. Or we turn it off and back on the water comes gushing out for about another 30 minutes or so.
Is this normal and by the way it is cleaning up the pool albeit slow?