Controlled-flow-inlet swimming pool system

Claim 1

A SWIMMING POOL SUPPLY SYSTEM FOR SUPPLYING WATER TO POOL STRUCTURE HAVING VARIABLE DEPTH WHICH COMPRISES A SUPPLY MANIFOLD EXTENDING SUBSTANITALLY LONGITUDINALLY OF THE POOL AND SUBSTANTIALLY AT THE BOTTOM REGION THEREOF FOR SUPPLYING INLET WATER FOR REPLACEMENT AND RECIRCULATION, THE MANIFOLD PRESURE BEING ADAPTED TO CHANGE AT THE SUPPLY AND AT VARYING DISTANCE ALONG THE MANIFOLD THREFROM, A PLURALITY OF CONTROLLED-FLOW INLET DEVICES SPACED ALONG THE MANIFOLD TO SUPPLY INLET WATER TO THE POOL, EACH CONTROLLED-FLOW INLET DEVICE HAVING AN ORIFICE OF VARIABLE SIZE DETERMINED BY INSTANTANEOUS MANIFOLD PRESURE AND BEING OF SUCH CAPACITY RELATIVE TO EACH OTHER AS TO MAINTAIN A SELECTED INLET FLOW VOLUME AT DIFFERENT POOL REGIONS ALONG THE MANIFOLD WHICH IS PROPORTIONED TO THE RESERVOIR DEPTH AT THE REGION OF EACH REGULATOR, MEANS TO RECEIVE AND FILTER OVERFLOW WATER FROM THE RESERVOIR, AND MEANS TO RECIRCULATE THE FILTERED OVERFLOW WITH FRESH WATER REPLACEMENT TO THE MANIFOLD FOR SUPPLYING THE POOL.