Pool school says to backwash when filter pressure raises by 25%.
I have an old pool... neighbors think the pool was dug in the early 80s.
When the pool is backwashed and all baskets clean - pump running at 2175 rpm - the pressure gauge reads 1.5psi. So I need to backwash when the pressure gets up to 2psi while running at 2175rpm?
I have an old pool... neighbors think the pool was dug in the early 80s.
When the pool is backwashed and all baskets clean - pump running at 2175 rpm - the pressure gauge reads 1.5psi. So I need to backwash when the pressure gets up to 2psi while running at 2175rpm?