McAlpine Shower Trap - STW1-R

The McAlpine STW1-R 19mm Water Seal Shower Trap with Universal Outlet is a plumbing component desi...

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Product Information

Full details

This guide is for anyone installing or maintaining a McAlpine STW1-R shower trap. The STW1-R provides a reliable water seal, preventing unpleasant odours from entering your space. However, it's essential to understand its specific installation requirements and limitations to ensure optimal performance. This guide will cover everything from features and benefits to setup and troubleshooting.

All features

Model Part NumberSTW1-R
BrandMcAlpine

Extended Product Information

FAQs

What is the purpose of the water seal?

The water seal prevents foul odours and sewer gases from entering your bathroom.

How do I clean the shower trap?

Remove the grid and clean out any hair or debris. You can use warm, soapy water.

What size waste pipe does it connect to?

The universal outlet is designed to connect to various waste pipe sizes. Check the specifications for exact sizes.

How often should I clean the trap?

It is recommended to clean the trap regularly, ideally every few weeks or as needed, depending on usage.

What should I do if the shower trap is leaking?

Check all connections and tighten them. If the leak persists, you may need to replace the trap or the connecting pipes.

Can I use harsh chemicals to clean the trap?

Avoid using harsh chemicals, as they may damage the plastic. Use mild soap and water instead.

What is the flow rate of the STW1-R?

The flow rate is 26 l/min with a 15mm head of water.

Where can I find replacement parts?

Replacement parts, such as a new grid, may be available from plumbing supply stores or online retailers.

Troubleshooting

Slow Drainage

Remove the grid and clear any blockages such as hair or soap scum. Ensure the waste pipe is not kinked or blocked further down the line.

Odour Problems

Check the water seal. If the trap has dried out, flush water through it to re-establish the seal. Also, inspect for leaks around the connections.

Leaks

Inspect all connections (shower tray to trap, trap to waste pipe). Tighten connections if loose. If leaks persist, check for damage to the trap or pipe fittings and replace as needed.

Pros and Cons

Pros

  • Effective odour barrier due to the 19mm water seal.
  • Versatile connection options with the universal outlet.
  • Easy maintenance with the removable grid.
  • Efficient water flow to prevent standing water.
  • Durable and long-lasting plastic construction.

Cons

  • Requires specific installation procedures for proper sealing.
  • May require professional installation for those unfamiliar with plumbing.
  • The plastic construction may be susceptible to damage if exposed to extreme heat or impacts.
  • The flow rate may be affected by blockages or debris.
  • Regular cleaning is necessary to maintain optimal performance.

Setup, Compatibility & Care

  1. Installation: The STW1-R should be installed beneath the shower tray. Ensure all connections are watertight to prevent leaks. Follow the manufacturer's instructions for the best results.
  2. Compatibility: It is compatible with standard shower waste pipes. Check the waste pipe size before installation.
  3. Care:
  • Regularly clean the removable grid to remove hair and debris.
  • Check for leaks periodically.
  • Avoid using harsh chemicals that could damage the plastic.

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