Glass block comes in 8-in. and 6-in. squares and 4 x 8-in. half-block rectangles. You’ll need to choose between real mortar grout joints and clear silicone–joined blocks. We chose the silicone system because we liked the clean, uninterrupted look. Whichever way you go, buy the panel preassembled and banded together as one unit, ready to set into the opening.
The tank is concealed within a 2×6 wall that’s built in front of the existing plumbing wall. It does require some plumbing rerouting because the waste line runs through the wall instead of the basic floor-mounted toilet flange (see Photos 8 – 12). The toilet can be ordered with a wall-mounted access panel/flush button like ours or with the panel mounted on top of a half wall. A ‘chair carrier’ (Photo 11) comes with the toilet. This steel framework contains the toilet and operating mechanisms and is designed to support the weight of the toilet.
Turn off the main water supply to the house, and in a convenient location, cut the hot and cold water supply pipes for the bathroom. Also cut out and remove all the existing water lines and fittings in the bathroom. Finally, cut out and remove the vent section leading to the sink and the main stack 5 in. below the vent tee. Stuff rags into open drain lines to keep sewer gas out of the house.