My shower water pressure seems low, how can I improve it?

Low pressure from your shower or a weak flow may indicate blockages or insufficient water supply pressure. If you’re experiencing a weak water flow, poor shower performance or a difference in water pressure between outlets, the following steps can help to resolve the issue:

1. For gravity-fed water systems, confirm the height of the cold-water tank to ensure sufficient pressure.
2. If using a combi boiler, check the boiler pressure is within normal range.
3. Check the shower outlets for limescale or blockages.
4. Turn off the water supply.
5. Remove the handles and trim plate, and extract the thermostatic cartridge and/or the flow cartridge. Instructions for your product can be found by selecting the relevant product on our website and navigating to the ‘Downloads’ tab on the product page.
6. Check the cartridge(s) for any limescale or debris buildup.
7. Clean the filters inside the cartridge.
8. Soak any parts with limescale in descaler, such as white vinegar, for 30 minutes and then wash through with water.
9. Return the cartridge(s) to the valve and replace the handles and trim kit.
10. Test the shower by switching between hot and cold to confirm smooth temperature control, then test the flow function to ensure correct operation.

If you need to replace the cartridge(s), spare parts can be found on our spares website.

Avoid mixing high and low pressure supplies on one valve – both water feeds should have a balanced pressure.