Remove Shower Cartridge

[NewtoDIY1]

Hi all,

We have been attempting to remove our flow shower cartridge (CP Hart shower valve) in order to fix a leak. Have been really struggling as it would budge with a hex spanner.

Could anybody please kindly suggest a correct puller for this or any other methods / tips to try to extract the cartridge?

Many thanks
Leo

 

[Burnerman]

I'd give the thing a good wire brush to remove as much scale as possible, then spray in some WD40 or similar.
Any chance you could borrow an impact wrench with a deep drive hexagonal socket, Leo?
John

 

[NewtoDIY1]

Thanks Burnerman. Will definitely try. Do we know if this cartridge is supposed to be removal. Dont want to force my through and risk damaging it.

 

[Burnerman]

I’ve yet to find a cartridge that isn’t removable but the question is, can you find a replacement?
The showerdoc.co.uk is one of the best suppliers, and often a picture of it will show which part is threaded.
You may find the cartridge just needs an O ring to cure the leak but that can depend on how worn it is.
John