Certikin Liner Main Drain + Hydrostatic Relief Valve, Collection Tube & Plug, Bush & Nipple Bag (ZZ0353P)

Description

Certikin Liner Main Drain + Hydrostatic Relief Valve, Collection Tube & Plug, Bush & Nipple Bag

Main Drain HD33L Featuring Certikin’s unique grille design and available for concrete or liner pools the HD33 drain is used to draw the base water for -ltering and is also used as the principal method of emptying the pool. Both concrete and liner types come complete with self-tapping fixings screws for added safety. Manufactured in white ABS.Features:- High Flow- Low Velocity grille supplied as standard- Provides up to 50% more free flow area than other models- Anti-vortex design- Protective film prevents damage during installation- Stainless steel grille available (CK33S)- Square frame and grille range available for commercial installationsMain Drain SelectionWhen choosing sump (main drain) size always assume that total flow may be directed to the plant room via the sump(s) – sump size should be chosen accordingly. In normal conditions flow will be divided between surface draw-off and sump(s) in ratio: 70% Surface/30% sump for Skimmer type pools or 50% Surface/50% sump for Deck Level pools.Important – On commercial or shallow pool applications stainless steel main drain grilles must be used. Recommendation – Main drains must be arranged so that there is no risk of bathers being drawn towards them or trapped there. It is recommended that on all installations, including domestic, a minimum of 2 xmain drains are installed 2 metres apart.

Product documentation:

HD33L_CAD-75.pdf

HD33LD_CAD-76.pdf

HD33L-77.dwg

HD33LD-78.dwg

certikin_maindrain_brochure-79.pdf