Pool Pressure Gauge

A pressure gauge is a device used to monitor filter pressure and determine when cleaning is necessary.

Understanding Pressure Gauges

A pressure gauge is a small dial located on pool filters that indicates the internal pressure of the filtration system. Monitoring this pressure helps pool owners determine when to clean or backwash their filters.

When to Clean or Backwash

  • When pressure is 8-10 psi higher than the normal operating range.
  • If water flow appears restricted or filtration is inefficient.
  • After performing backwashing or deep cleaning.

Related Terms

  • Backwashing – The process of cleaning a filter by reversing the flow of water.
  • Filter Media – The material inside a filter (sand, DE, or cartridge) that captures debris.
  • Diatomaceous Earth (DE) – A fine powder used in filters to trap ultra-fine particles.

Back to Swimming Pool Glossary