By Human Kinetics (Organization)
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Additional info for AquaTech : best practices for pool and aquatic facility operators
Vacuum filters are installed before the pump, whereas pressure filters come after the pump. Pressure filters often have additional pressure gauges. One gauge measures the pressure of water as it enters the filter (influent), and the other measures the pressure of the water as it flows out of the filter (effluent). The difference between the pressure readings on these gauges is called the differential. The trapped particles build up and eventually slow the water’s flow through the filter, reducing pressure on the effluent gauge and making the differential exceed a predetermined limit established by the manufacturer.
Your local regulatory agency’s code may specify other turnover requirements for different pool classifications. 23 System Works Automated Controllers, Chemical Metering Pumps, and Feeders 2 How a Pool Circulation Maintenance: If you are using a natural gas heater, be very careful if problems arise with the ignition system. Unregulated ignition of the gas could cause an explosion. Follow the manufacturer’s instructions for dealing with such problems, and call a service technician trained in repairing this type of equipment.
3. Turn on the pump to reverse the water flow. 4. Watch the sight glass and stop the backwash when the water is clear. 5. Turn off the pump, close the valve to the separation tank, and open the valve to the pool. 6. Turn on the pump. Feed a slurry of DE and water into the filter to recoat the elements. To Clean a Cartridge Filter 1. Turn off the pump and close any valves to erosion chemical feeders. 2. Open the canister by slowly turning the top to the left. Remove the filter cartridge. 3. Spray the cartridge with a hose to remove the large dirt and debris.
AquaTech : best practices for pool and aquatic facility operators by Human Kinetics (Organization)