Now we have plumbed up and pressure tested the Hans Grohe I boxes we can put the 3/4″ ply on the walls of the bathrooms. This first one is the front view of the I box for the shower, so has the hot and cold coming in, and the mixed output to the shower coming out of the bottom (in copper) going to the shower outlet.
This shot is looking at the back of the mixer for the bathroom with a shower and a bath, so again the hot and cold come in from the left and right, and the output to the bath filler and the shower are at the top and bottom. However with the block design of the I box, it actually does not matter which way the pipes come into the block.
