How To Backwash A Sand Filter Turn off the pump Never turn the multiport valve handle on the filter while pump is running! Roll out discharge hose Turn the mulitport value handle to the backwash position Turn on the pump and run system for 2-3 minutes or until water in the sight glass or discharge hose turns clear Turn off the pump Turn the mulitport value handle to the rinse position Turn on the pump and run system for 10-20 seconds Turn off the pump Place the value handle in the filter position Turn on the pump Add water to pool if necessary In a cartridge filter, pool water circulates through cartridges of fibrous material. These cartridges can be removed, hosed down and soaked in a cleaning agent. Cartridge filters are relatively easy to clean and also have a low replacement cost. They should be replaced when they fail to maintain clear water in the pool or when they show signs of wearing Dangerous pressures can build up inside a filter and before you attempt any maintenance operation, be sure to consult Kubiak Swimming Pools, or the equipment operations manual. The Heater Most pool owners who have heaters agree that it is a vital factor in expanding their pool's use. Heaters can extend your swimming opportunities for more hours in the day and more months of the year. Look at a few facts first. Pool water of 78 degrees Farenheit is what most people prefer for swimming. The sun alone can help water achieve that temperature, but unless you live in a very warm climate, your pool will never exceed the average air temperature. Therefore, the assistance of a heater is needed to keep water constantly at 78 degrees Farenheit or higher. Size is another consideration. Don't select a smaller heater on the initial cost alone. A larger heater may actually be more economical because a smaller heater will have to work longer and harder to heat the same size pool. Back To FAQ's