Certikin Liner Main Drain + Plug, Bush & Nipple Bag is an essential component for pool filtration systems, designed to ensure efficient water circulation and maintenance. This product, featuring the Main Drain HD33L by Certikin, boasts a unique grille design that sets it apart in terms of performance and reliability. Whether your pool is constructed with concrete or lined with a liner, the HD33 drain is a versatile solution that caters to various pool types.
Constructed from durable white ABS material, this main drain is built to withstand the rigors of pool environments while providing consistent functionality. The inclusion of self-tapping fixing screws enhances the safety and security of the installation, giving you peace of mind knowing that your pool’s filtration system is well-equipped.
One of the standout features of the Certikin Liner Main Drain is its High Flow-Low Velocity grille, which is included as a standard component. This grille design offers up to 50% more free flow area compared to other models, ensuring optimal water circulation and filtration efficiency. Additionally, the anti-vortex design of the drain helps prevent any potential hazards or disturbances in the water flow.
To further enhance the versatility of this product, Certikin offers a stainless steel grille option (CK33S) for those seeking additional durability and aesthetic appeal. For commercial pool installations, a square frame and grille range are available to meet specific requirements and standards.
When selecting the appropriate sump (main drain) size for your pool, it is crucial to consider the total flow that may be directed to the plant room via the sump(s). The sizing of the sump should align with the flow distribution between surface draw-off and sump(s) based on your pool type, whether skimmer or deck level. In commercial or shallow pool applications, the use of stainless steel main drain grilles is recommended for added strength and longevity.
For safety and operational efficiency, it is advised to install a minimum of two main drains spaced at least 2 meters apart to prevent any risks of entrapment or suction hazards for pool users. This precaution applies to all installations, including domestic settings, and is a standard practice to ensure a safe swimming environment.
For technical specifications and detailed product information, you can refer to the product documentation provided below:
certikin_maindrain_brochure-79.pdf
Manufacturers description:
Certikin Liner Main Drain + 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:
Rich Watts (verified owner) –
Valid PoolCleaners Customer Satisfied.
Stephen Waddingham –
Verified Customer Great, exactly as desribed does the job well
Tim Morgan (verified owner) –
Validated PoolCleaners Customer Great
Chloe Manders (verified owner) –
Registered PoolCleaners Customer Wonderful.
Kate Tulloch (verified owner) –
Registered Customer Good product
Shazia Yaseen (verified owner) –
Valid Customer Great thanks
Tessa Muir –
Registered PoolCleaners Customer Great very quick delivery
Jan Usvyat –
Verified Review Recommended for delivery