Dripping Aqualisa Shower

We have an old Aqualisa shower that has started dripping constantly since upgrading to a Combi boiler with higher water pressure.

I have read online that it is allegedly quite a simple DIY job and I can potentially a) change the cartridge (£120+) or b) remove the cartridge and replace the washers (£20 ish). Even the washer replacement seem expensive for what is provided - is there a list anywhere of the washer sizes required (and are these available outside one of the kits) please?

Online it suggests just pulling the knob off, but despite a little pressure mine does not budge and I have failed at the first hurdle. Can I check please, from the photo below is there a special technique for removing this type, what is the exact model of shower, and what cartridge or washer replacements would be required (so that I can order the right parts and then remove/replace in one go).

Thank you

Ask Aqualisa, their tech helpline is good. you probably should send them a pic from a little further away.

Thank you for your reply. I haven't managed to get through to them.



I have removed the knob and front casing and it does not look like any of the Aqualisa cartridges I see discussed online. I attach photos. One screw is very rusted in (WD-40 hasn't done much) so it is likely to disintegrate or remain stuck. It is quite rusted, so I have not tried to remove it yet in case it then won't go back in, as it is still a working shower (albeit with a drip).

Can anyone identify what the part is please? A Google image search suggests it may be a Price Pfister Shower Cartridge, but there appear to be a number of types.

Thank you

Anon said:

Can anyone identify what the part is please?

Click to expand...

Looks like you might be out of luck... https://www.showerdoc.com/aqualisa-aquavalve-900-exposed-pbv-shower-spares

Thank you, that is really helpful. Although the outer casing is the same (Aqualisa Aquavalve 900 - thank you for identifying that, as the Google lens didn't), the parts diagram doesn't seem to show the valve looking anything like the one we have (the diagram doesn't show a bit with a spindle, unless that sits in front of the cartridge?)

It looks like we will have to get the complete shower replaced . If anyone can suggest any reasonably priced mixer showers that will slot in to the same space/fittings, to avoid having to retile, it would be appreciated. Thank you.

Showerdoc can usually advise, https://www.showerdoc.com/care/contact-us