If the cartridge is leaking or letting bu water, replacing the seals may resolve the issue. Here is the link to the seals for this cartridge: Aqualisa Seal Kit for Servicing 022801 Thermostatic Cartridge (CLICK HERE).
The 022804 has now been discontinued by Aqualisa, however the following cartridge is a suitable replacement:
Aqualisa 022801 Thermostatic Cartridge.
Aqualisa 022804 Manual Blue Thermostatic Cartridge, Including Gasket and Fixings
The Aqualisa 022802 Cartridge is used in the following Aquavalve series:
We accept the following payment methods:
We use industry-standard payment systems to help keep your payment information secure. Our website and payment processes are regularly checked to maintain PCI security standards.