« Back to Glossary Index

The term used to describe a condition preventing full flow of water. Restriction can occur with full skimmer or strainer baskets, obstructions in the plumbing, dirty filter, undersized plumbing or equipment, or placing devices like heaters, cleaners or fountains in the circulation system. Restriction on the suction side creates higher vacuum (or suction), while on the pressure side creates higher pressure.

« Back to Glossary Index