Concealed piping advice

[Notadecor8ter]

I have a crosswater crossbox to install for a shower.

Wall is Thermalite breeze and plan to channel out for the valve and pipes as I have limited space.

Its an unvented system and I have two previous Polypipe tails from a Bar Mixer that was dropped down the ceiling available to connect in with full bore isolators but I would like to do Copper to be sure this install is solid and I never see it ever again (getting wet).

Crossbow terminates at the bottom of the valve so I need to go down then up to feed in. The Shower head will be a run out and then Hand mixer right next to the valve.

I have bought a pipe bender....

Is this going to be suitable to do with bends and be suitable pressures or am I being naive?

 

[blup]

There’s a minimum radius for 90 degree bends so you might struggle. I found texture sprint about as small as you can get if your not comfortable with soldering

 

[Wayners]

Pipe bender is not very compact.
I always soldered joints in copper as easy enough.
Just remember never heat and solder at the same time.
Don't over heat pipe and bubble the solder.

I can't answer if your plan will work. Just go for it..