McAlpine Shower Trap - 50mm Water Seal Resealing Shower Trap with Multifit Outlet

The McAlpine STW8-RB is a 50mm water seal resealing shower trap with a multifit outlet, designed f...

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eBayMcAlpine STW8-RB 50mm Water Seal Resealing Shower Trap with Multifit Outlet
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DebenhamsMcalpine Unisex White Stw8-Rb 50Mm Water Seal Resealing Shower Trap With Multifit Outlet In
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OnBuy.comMcalpine Stw8-Rb 50Mm Water Seal Resealing Shower Trap With Multifit Outlet 5036484004086
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B&QB&Q - 50mm Water Seal Resealing Shower Trap Multifit Outlet 85mm Chrome Brass
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Product Information

Full details

This McAlpine shower trap is ideal for homeowners and plumbers looking to prevent unpleasant bathroom odors caused by evaporation in standard 1.5" UK plumbing systems. Its key benefit is the resealing water trap mechanism, which ensures effective odor prevention even with infrequent shower use. A minor consideration is ensuring compatibility with your specific shower tray's depth due to its low-profile design.

All features

Model Part NumberSTW8-RB
BrandMcAlpine

Extended Product Information

FAQs

What is a resealing shower trap?

A resealing shower trap is designed to automatically maintain a water seal, even if the shower isn't used regularly. This prevents foul odors from sewer gases from entering your bathroom, a common issue with standard traps that can dry out.

What size waste pipe does this trap connect to?

The multifit outlet is designed to connect to standard 1.5" (40mm) UK waste pipes. It offers some flexibility for variations in pipe size within this range.

Can this trap be used in a very shallow shower tray?

Yes, the McAlpine STW8-RB features a low profile, making it suitable for installation in shower trays with limited depth.

How do I clean the shower trap?

You can clean the trap by carefully removing the chrome-plated cover and the trap body. Wash these parts with mild soap and water, rinse, and then reassemble. Avoid abrasive cleaners.

What is the water seal depth?

The trap maintains a 50mm water seal, which is the standard depth required to effectively block sewer gases.

What are the available finishes?

The trap is available with a chrome-plated cover, typically made from plastic or brass, to match bathroom fixtures.

Troubleshooting

Water seal is not forming or is disappearing quickly.

Ensure the trap is correctly installed and that the water level in the trap body reaches at least 50mm. Check for any leaks in the waste pipe connection. If the shower is used very infrequently, run water through it for a minute once a month to replenish the seal.

Foul odors are still present.

Check that the trap body is clean and free from blockages. Ensure the multifit outlet is securely connected to the waste pipe. Verify that no other ventilation points in the bathroom plumbing are compromised.

Trap is difficult to remove for cleaning.

Ensure no sealant or adhesive is preventing removal. Try gently wiggling the trap body while pulling upwards. If it's a new installation, confirm no excess adhesive was used during fitting.

Pros and Cons

Pros

  • Effectively prevents foul odors with its resealing water trap.
  • Flexible installation due to the multifit outlet.
  • Suitable for shallow shower trays.
  • Easy to maintain and clean.
  • Durable and built to last.

Cons

  • Requires a minimum 50mm water depth for the seal to be effective.
  • Multifit outlet may require specific adapters for non-standard pipe sizes.
  • Chrome plating on plastic models may be susceptible to scratching over time.

Setup, Compatibility & Care

Setup:

  1. Ensure the shower tray has a suitable outlet compatible with a 1.5" (40mm) waste pipe.
  2. Connect the multifit outlet of the trap to the existing or new waste pipe, ensuring a secure fit.
  3. Install the trap into the shower tray aperture, following the tray manufacturer's instructions.
  4. Connect the shower waste fitting to the top of the trap.
  5. Test the seal by running water through the shower.

Compatibility:

  • Designed for standard 1.5" (40mm) UK plumbing waste systems.
  • Compatible with most standard shower trays and enclosures.
  • Requires a minimum depth for the 50mm water seal.

Care:

  • Periodically remove the chrome-plated cover and the trap body.
  • Clean the trap body and outlet with mild soap and water to remove any debris or build-up.
  • Rinse thoroughly and reassemble.
  • Avoid using abrasive cleaners or harsh chemicals that could damage the materials or finish.

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