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B&Q£12.74Visit shop B&Q - Aa10W 75mm Water Seal Adjustable Inlet Basin Trap With 1" Multifit Outlet
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The McAlpine AA10W is an essential plumbing component for homeowners and DIY enthusiasts undertaking bathroom or kitchen repairs and improvements. Its key benefit lies in its versatility, featuring an adjustable inlet and a 1.25" multifit outlet that simplifies connection to various waste pipes, preventing sewer gases from entering living spaces with its 75mm water seal. A potential caveat for users might be ensuring the correct pipe type is used with the multifit outlet for a secure seal.
| Model Part Number | AA10W |
|---|---|
| Brand | McAlpine |
The water seal is a layer of water held within the trap that acts as a barrier, preventing unpleasant odors and harmful sewer gases from escaping the drainage system and entering your home.
Yes, the AA10W is designed to fit standard 1.25" basin waste fittings, and it includes a 60mm Ø Polished Stainless Steel Waste Flange with centre pin fixing suitable for most basins.
A multifit outlet means the trap's outlet can accommodate and create a seal with a variety of different pipe sizes and materials, typically including plastic, copper, and lead pipes within a specific range (1.25" / 32mm OD).
The inlet connection typically uses a compression nut and washer system. Loosening this nut allows you to slightly angle or reposition the trap's inlet pipe before re-tightening to create a secure connection.
The trap itself is manufactured from durable polypropylene, and it comes with a 60mm Ø Polished Stainless Steel Waste Flange.
Basic plumbing tools are usually sufficient, such as a pipe wrench or adjustable spanner for tightening compression nuts. Ensure you have a cloth or sealant tape if recommended for specific pipe types.
It's good practice to check for leaks after installation and periodically (e.g., every few months). If you notice odors, check that the water seal is intact by running water.
Check the plug and chain mechanism for obstructions. Ensure the trap itself is clear of debris. Verify the waste pipe is not blocked further down the line.
Ensure all compression nuts are tightened correctly. Check that washers are present and correctly seated. For the multifit outlet, confirm the pipe is properly inserted and the seal is adequate for the pipe material.
The water seal may have evaporated (e.g., if the sink is unused for a long period). Run water into the basin to replenish the seal. Check if there are any cracks in the trap body or connections that might be allowing gas to escape.
Confirm you are using the correct pipe diameter for the 1.25" multifit outlet (typically 32mm OD). If the pipe is slightly smaller, a suitable adapter or additional sealing compound may be required, though this is less common for standard waste pipes.
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