What causes short cycles in Pentair Water Filtration Systems?
- AamybatesSep 12, 2025
Short cycles in your Pentair Water Filtration System can be caused by several factors. One cause is improper backwash, so ensure you backwash until the effluent runs clear. Another cause is pool chemistry not adequate to inhibit algae growth, so maintain proper pool chemistry or consult a pool service technician. A plugged sand bed can also lead to short cycles; manually remove the top 1" surface of the sand bed, replace it with new sand, and chemically clean the entire sand bed. Lastly, a flow rate that is too high can cause short cycles, so restrict the flow to the filter's capacity.











