3 Things to Know About Backwashing a DE Filter

Backwash based on pressure, not a schedule Backwash when the pressure gauge reads 8–10 PSI above the clean starting pressure. This is the most efficient time to clean.

Backwashing too often or too late wastes resources Too-frequent backwashing wastes water and DE powder. Waiting too long clogs the filter, reduces flow, and strains the pump.

Always add fresh DE powder after backwashing The powder catches fine particles and gets flushed out during cleaning. Skipping this step reduces filtration effectiveness.