McAlpine Shower Trap Inner Cup - ST90INNERCUP

The inner cup's purpose is to guide water efficiently into the shower trap, preventing blockages and ensuring optimal drainage performance while also contributing to the trap's ability to block sewer gases.

Symptoms include slow draining, water pooling around the drain, or if the existing inner cup appears damaged, degraded, or excessively fouled during a routine clean.

No, this inner cup (ST90INNERCUP) is specifically designed for the McAlpine ST90CP shower trap model.

It is made from high-quality plastic, which is resistant to corrosion and wear.

The inner cup can be cleaned as part of the overall shower trap maintenance. Remove it, rinse thoroughly, and use a soft brush or cloth with mild soap. Avoid abrasive cleaners.

The inner cup measures approximately 62mm in length, 60mm in width, and 60mm in height.

Yes, the inner cup is designed for straightforward replacement and can be fitted by individuals with basic plumbing knowledge and tools.

Ensure the inner cup is correctly seated and free from debris. Check the entire waste pipe for blockages. Verify compatibility with your ST90CP trap.

This is often due to trapped waste in the trap. Clean the entire shower trap assembly, including the inner cup, with a suitable drain cleaner or a mixture of baking soda and vinegar.

Confirm that you have the McAlpine ST90CP shower waste. This inner cup is specifically designed for that model and may not fit other types or brands of shower traps.