How to Plumb a Basement Bathroom Part 4 How to Plumb a Basement Bathroom Part 4

What You'll Need
Flex Hose
T-fitting
CPVC and PVC Pipes
PVC Joints, Elbows, and Valves
PVC Glue and Primer
Pipe Cutter
Hacksaw
Utility Knife
Pipe Cleaner

A basement bathroom is not complete without water supply lines that will provide water for the toilet flush and sink. For toilet flushing systems, the piping project should be as direct as possible. For sink water supply lines, you probably want to use a hot water supply line. Follow the steps below to finish your basement plumbing project by extending the water supply lines from the new t-fitting to the sink and toilet of the basement bathroom.

Step 1 – Determine the Length of PVC Pipes Required

Measure the distance from the T-fitting installed to the main water supply line and the location of the toilet and the sink. Determine where if the pipe needs to be bended along the corners of the wall and consider the running distance of the PVC pipes along every corner of the basement bathroom. This will determine the length of PVC pipes required for the water line extension project. Make sure to consider every corner where the pipe will be bended. This will determine how many PVC elbows are needed as well.

Step 2 – Cut the PVC Pipes

Use a hacksaw or a pipe cutter to cut the necessary pipes required to cover the distance measured. Make sure to cut as cleanly as possible. Make a straight cut to ensure that the installation of the fittings will be easier. Clean the ends of the pipes using a utility knife. Get rid of any loose plastic that may have resulted from the cutting process.

Step 3 – Connect the Pipes

Clean the pipes with a pipe cleaner. Before inserting the pipe into the T-fitting, apply primer on the ends of the pipe and the fitting as well. Allow to dry for a minute. Apply pipe glue to the fitting and insert the pipe into the fitting before the glue dries. To add elbows for pipe bends, do the same to the elbow or joint and pipes to be connected. Apply PVC primer first then the glue. Connect additional pipes until the toilet is reached.

Step 4 – Install a Shut-off Valve

Install a shut-off valve to the toilet plumbing to control the flow of water. Connect the end of the PVC pipe to the shut-off valve by gluing the pieces together and connect the shut-off valve to a flex pipe that will later on be connected to the toilet tank.

Step 5 – Connect Water Supply Pipes for the Sink

Extending the water supply lines for the sink will also follow the same procedures as that of the toilet. However, make sure to consider piping for the hot water supply line as well. In this case, CPVC piping will be used as the main piping material. This pipe can tolerate both hot and cold water supplies. Measure and cut pipes enough to extend the line from the T-fitting to the sink and connect them following the given steps above.

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