Garage Toilet Installation

Place the closet flange around the soil pipe opening. Place the closet bolts into the slots along the left and right hand side of the flange. The bolts must be facing upward and parallel to the back wall. Place a nylon washer over the bolts, followed by a nut, and then hand-tighten.

Flip the toilet bowl upside down. Place the wax ring around the drain opening on the bottom of the toilet and press it firmly into place.

Turn the bowl right-side up. Pick up the toilet bowl and line it up over the closet flange. Ensure the closet bolts go through the holes in the toilet’s base.

Place nylon washers over the bolts and hand-tighten the nuts. When necessary, use a wrench to tighten the nuts, alternating each bolt. Do not over-tighten to avoid cracking the porcelain. Trim the closet bolts with a hacksaw if necessary. Place the decorative caps over the bolts.

Lift the tank up carefully and place it onto the toilet bowl, lining up the tank bolts with the holes on the bowl. Place nylon washers on the bolts and hand-tighten the nuts, as done in the previous step. Tighten the nuts with a wrench, alternating each bolt.

Shape the supply line into place using a tubing bender or tubing cutter. Connect the line to the tank-supply fitting from the stop-valve outlet. Place a plastic nut, compression nut and compression ring over the supply line and tighten with a wrench to secure it in place. This is the source of water for the toilet tank.

Install the handle and accompanying hardware inside the tank. Connect the toilet seat to the bowl.

Turn the water supply on and open the stop-valve. Allow the tank to fill with water. Flush the toilet half a dozen times to ensure it is working properly and there are no leaks.

Clean and dry the base of the toilet with a rag. Load a tube of caulk into a caulking gun and cut the tip off the spout if the caulk tube has not been used. Hold the gun at an angle, place the tip along the edge of where the toilet base meets the garage floor. Squeeze the handle to apply caulk and evenly trace the base of the toilet all the way around. This creates a watertight seal around the base of the toilet. Use your finger to smooth out the caulk as needed.