3 Things to Know About When to Backwash Your Pool Filter

Backwash when the pressure gauge reads 8-10 psi above your clean starting pressure, not on a fixed schedule. The gauge is reliable; a calendar is not.

Backwashing too early wastes water, while waiting too long makes your pump work harder and wastes electricity. A dirty filter restricts flow, so let the gauge guide you.

Check pressure once a week during peak season. If it hasn’t climbed 8-10 psi, leave the filter alone — it’s not full yet.