This question is regarding Trevi Boost Mains Pressure Shower with Elipse kit (built in) - Shower Spares

trevi boost mains pressure shower with elipse kit built in

How do you remove the existing cartridge? I cannot see which tool is required to remove the small fixing labelled no. 8 on your diagram.
Asked 6 years ago by Sharon
Part 8 is a threaded bolt with a x head.

Once you have removed parts 20 and 21 on the diagram you will see the hex part of the cartridge on which you can put a spanner to remove the cartridge.

Answered 6 years ago by Barrie Seabright

HI,
Do I use a posi screwdriver to undo the bolt head in part 8 and do I need to turn the water off first?

Answered 6 years ago by Sharon Ahmad

It looks like the head of the screw is damaged.

You do not need to turn the water off to remove the thermostatic cartridge.

Answered 6 years ago by Barrie Seabright

Is there any other way of removing the screw then?

Answered 6 years ago by Sharon Ahmad

Pliers or similar tool may do the job.

Answered 6 years ago by Barrie Seabright

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