This question is regarding Crosswater Thermostatic Cartridge - CP0000250 - GP0000250

Removing Cartridge

We have a bathstore (crosswater) Metro thermostatic bath shower valve and a Metro thermostatic shower valve. To be honest neither have ever seemed quite right, in that the thermostatic controls for both had very little effect if any on the water temp, instead we were only able to regulate the temp through altering the flow with the on/off control, higher flow equaled cooler water. We were led to believe this may have been boiler related.



Earlier this week we had a new combi boiler fitted which is better spec than old combi boiler. They also turned our cold water pressure down a little as said it had been running too high. Now we have only one flow rate from both shower and bath, less than before, and still no thermostatic control.



When we queried this the plumber said we needed new thermostatic cartridges in both valves. After reading various things on web though, we are now wondering whether the problem maybe that they were never fitted properly in the first place. So we have tried to remove the cartridge to check this out, but can't seem to remove it. Two questions - how on earth do you remove this thing? And do you think it sounds like we do need new valves or the existing ones fetching out and refitting? Photo of one attached
Asked 10 years ago by Anonymous
http://www.showerdoc.com/crosswater-thermostatic-cartridge-cp0000250

This is the cartridge. There are two check valves either side of the cartridge and two filters on the cartridge which need to be checked to see if they are blocked etc.
An adjuustable spanner or box spanner should do the job of removing it.

Answered 10 years ago by Anonymous

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