Concealed Themostatic Shower Valve

[elbitrevnoc]

Can anyone help please? Thought this would be a simple job, but I was obviously wrong!

I have a Tre Mercati Milan shower on which the cartridge seems to have failed. My original docs for the shower shows that the cartridge was a 63230, so that’s what I ordered. The part having arrived looks different to mine, in that it has an additional spindle/spring assembly to the rear. If I could remove that it looks as if it would otherwise be same as mine. I’ve attached a photo to show this.

As you can probably tell my plumbing knowledge is pretty poor, but I thought this would be a simple water off and replace part job. Have I simply got the wrong part, or am I able to disassemble/adjust the part I have ordered?

Thanks!

 

[denso13]

it has an additional spindle/spring assembly to the rear.

Are you sure that bit hasn't been left behind i.e. still in the shower valve?

 

[elbitrevnoc]

Thanks for replying.

No. What’s left in the wall fitting is simply an up/down pin - same sort of thing you’d see on a radiator stat.

 

[denso13]

It's not a great picture but does this help https://www.showerdoc.com/sirrus-tre-mercati-thermostatic-shower-spares

It looks like the up/down pin is part of your new cartridge?

 

[elbitrevnoc]

Thanks for link. I don’t think so, although I’m away from the job now. So far as I could see the receiving pin was not removable from the pipe work, or at least it didn’t seem to be part of the cartridge itself. Will have to take another, longer look tomorrow!

 

[elbitrevnoc]

Thanks Denso13. You were right!

It took a bit of brute force and a squirt or two of WD40, but the piston part of the cartridge was indeed stuck in the valve. Job now sorted!