Pool / Spa Industry Terminology

 

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UNDER- DRAIN Also call filter laterals or lower collection system - Slotted, finger-like tubes that are attached to a sand filter manifold. The slots are on the bottom side to prevent the sand from passing through. Water comes into the filter tank, through the sand, into the under-drain, and then back to the pool.

UNDERWATER LIGHT A fixture designed to illuminate a pool or spa from beneath the water's surface.

 

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