Hi! Is it normal that the spa spillway to the pool cannot be turned off when the pool pump is on?
My pool's acid demand is very high even though the salt water chlorinator only runs at about 40% in the summer. I suspect the aeration from the spill-back (from the spa to pool) is the reason for the high acid demand.
It seems like it would make sense to have a valve allowing for the spillway to be turned off. Mine only has the check valve, but no way to turn it off. Is this normal?