Why backwashing matters for a healthy pool

Filtration is the workhorse of any pool system. As water circulates, it deposits dirt, oils, hair, and fine particles inside the filter medium. Over time that medium—sand or D.E. powder—becomes clogged, flow slows, and the system’s pressure rises. Backwashing forces water in the reverse direction through the filter and ejects trapped debris through the waste port, restoring flow and extending equipment life.

When to backwash

Homeowners should backwash when the filter pressure climbs about 10 psi …

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