Swimming pool

Claim 1

IN A SWIMMING POOL INCLUDING A BASIN AND A WATER FILTERING PLANT, A RECIRCULATION SYSTEM CONNECTING SAID BASIN AND SAID FILTERING PLANT, SAID RECIRCULATION SYSTEM BEING FREE OF EXTERNAL PIPING SUBJECT TO DISRUPTION AND COMPRISING A PARTITION WITHIN SAID BASIN NEAR ONE END THEREOF AND EXTENDING ACROSS THE WIDTH OF SAID BASIN FROM THE BOTTOM TO AN ELEVATION ABOVE THE PREDETERMINED LIQUID LEVEL OF SAID BASIN, AND SEPARATING THE MAIN PORTION OF SAID BASIN FROM AN INTERNAL CHAMBER IN ONE END PORTION OF SAID BASIN, A SECOND PARTITION EXTENDING FROM SAID FIRST PARTITION AND DIVIDING SAID INTERNAL CHAMBER INTO A PUMP WELL AND A FILTER COMPARTMENT, A SUBSTANTIALLY HORIZONTAL FLOW CHANNEL IN THE UPPER PORTION OF THE WALLS OF SAID BASIN, AN OVERFLOW INTO SAID CHANNEL FROM SAID BASIN DETERMINING THE NORMAL LIQUID LEVEL IN SAID BASIN, AND OUTLET FROM SAID CHANNEL INTO SAID PUMP WELL, AN INLET INTO SAID FILTER COMPARTMENT FROM SAID PUMP WELL ADAPTED TO BE CONNECTED TO THE SUCTION LINE OF A PUMP IN THE FILTER COMPARTMENT, AND AN INLET INTO SAID MAIN PORTION COMPRISING A PASSAGEWAY LEADING FROM SAID FILTER COMPARTMENT THROUGH SAID FIRST PARTITION, SAID INLET BEING ADAPTED TO BE CONNECTED TO THE OUTLET CONDUIT FROM A FILTER IN SAID FILTER CHAMBER.