Pool Multiport Valve

A multiport valve is a valve that directs the flow of water in sand and DE filters for various functions like backwashing and rinsing.

Understanding Multiport Valves

A multiport valve is a crucial component of a pool’s filtration system, allowing users to control different water flow settings with a single lever. These valves are typically found in sand filters and diatomaceous earth (DE) filters.

Functions of a Multiport Valve

  • Filter: Directs water through the filter medium for normal operation.
  • Backwash: Reverses water flow to clean the filter media.
  • Rinse: Flushes out debris after backwashing.
  • Recirculate: Bypasses the filter, allowing water to circulate freely.
  • Waste: Directs water out of the system, used for draining the pool.

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.

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