Cara's Pool School — intake valve

This can vary, dependent upon the particular set-up application. If the valve controls flow between the skimmer and main drains, the most common ratio is roughly 50/50 -- keeping in mind that pools with more floating debris may prefer a slight advantage toward the skimmer. If the valve is controlling flow between the skimmer and a separate suction port in the wall, the ratio should be determined by the flow required for the cleaner or vacuum connected to the wall port -- remembering to follow manufacturer's recommendations for the cleaner or vacuum for optimal flow/suction. If the valve determines the...