page 9- New Swimming Pool IX, Con't Recirculating Equipment 5. suction cleaner that we have now would suffice for a larger pool, 6, Water Heating and Cooling There should be no heating coils or otadne located inside the pool proper, It is usual to pass a portion of the recirculating water thru the shell of a tank heater or the outer annular piping of a heat exchanger, 7. Purification Chlorine and Chlorine compounds, This method is at present the most frequently used, This is the method now used, by K, U. Swimming Pool, Our purification equipment will have to be enlarged, It may be necessary to erect a small building outside to house this equipment but there is a possibility that we could install the purification equipment in the southeast corner where the eirie towel room is now located,