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eBay£24.99Visit shop McAlpine 1 1/2"" trap body for tile drain. 70mm high, 1.5"" outlet. ST90-70B
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Debenhams£33.12Visit shop Mcalpine Unisex White St90-70B 50Mm Water Seal Trap Body With 1.5" Multifit Outlet In
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The McAlpine ST90-70B is a versatile plumbing fitting designed for efficient wastewater removal and odor prevention in residential and commercial installations. It is ideal for plumbers and DIY enthusiasts needing a reliable trap body for various appliances. While offering a robust 50mm water seal and a universal 1.5" multifit outlet, users should ensure compatibility with existing pipework due to its specific connection size.
| Model Part Number | ST90-70B |
|---|---|
| Brand | McAlpine |
The water seal is a small amount of water retained in the trap that acts as a barrier, preventing foul-smelling sewer gases from entering your living space.
Yes, the 1.5" multifit outlet is designed to accept 1.1/4" pipes, usually with the aid of a specific adaptor, which may need to be purchased separately.
Regular cleaning is recommended, especially if you notice slow draining. A simple flush with hot water and detergent every few months, or as needed, should suffice. Check for visible debris periodically.
The McAlpine ST90-70B has a tested flow rate of 34 liters per minute when tested under a constant 15mm head of water.
The trap body is supplied with a 135° bend and a BSP coupling nut for versatile connection options.
While made from durable materials, it is primarily designed for indoor plumbing installations. Ensure it is protected from freezing temperatures if used in unheated environments.
Ensure the water seal is intact. If the fixture is rarely used, run water for a few seconds to refill the trap. Check for any cracks or leaks in the trap body or connections that may be compromising the seal.
Check for obstructions in the trap body or the connected waste pipe. Clean out any accumulated debris. Ensure the pipework has adequate fall towards the main drain.
Verify that all connections are secure and properly sealed. If using push-fit connections, ensure the pipe is cut squarely and inserted fully. Consider using PTFE tape on threaded connections or appropriate pipe sealant.
Setup: Ensure the area for installation is clean and accessible. Connect the 1.5" multifit outlet to the appliance's waste pipe, ensuring a snug fit. If necessary, use appropriate solvent cement or sealant for rigid connections. Attach the trap body to the drain outlet, securing it firmly. The included 135° bend can be rotated to achieve the desired pipe alignment.
Compatibility: The ST90-70B is designed with a 1.5" (approximately 40mm) multifit outlet, compatible with standard 1.5" waste pipes. It also accepts 1.1/4" pipes with suitable adaptors. Always confirm the diameter of your existing pipework before installation. The BSP coupling nut allows for connection to compatible threaded fittings.
Care: To maintain optimal performance and prevent blockages, regularly clean the trap. Periodically dismantle the trap body (if designed for easy access) or flush with hot water and a mild detergent. Check for any visible debris in the trap and remove it. Ensure the water seal is always maintained by running water through the fixture regularly.
