Does the shutoff valve have to be in the shower? Could it be moved to the other side of a wall outside of the shower?
The valve joins a steel pipe to PEX. Both pipes are still bedded in concrete even though I cleared away the concrete that the valve was embedded in. The valve could be moved but the pipe joints remain in place because it would be too big of a project to unbury all of it, cut the steel pipe & thread it, etc. So if I move the valve the box would still need to be accessible in case the joints fail.
I need to update that other thread. I’ve already drilled a 14mm hole in the wall and ran a shaft through it which is now attached to a right angle gearbox mounted on the new valve, which has a replaceable cartridge. So what’s left to do is getting a custom handle on the shaft that goes through the wall and I need to build the box.