How to Install Plumbing in Your Bathroom

When it comes to plumbing, bathroom sinks, tubs and toilets require a whole lot of effort to install. However, the task is not as difficult as one may think. As long as the necessary tools and a basic knowledge on plumbing are present, the task is not that Herculean. The most difficult part perhaps is the creation of the bathroom design. But as soon as the design is over, the bathroom plumbing is not that difficult to install.

Step 1 – Design the Bathroom and Obtain Building Permit

The first step in the installation of the bathroom plumbing would be to design the bathroom layout and presenting it to the proper authorities to obtain a building permit. Check out the local building codes that apply before deciding to start the installation process.

Step 2 – Determine the Sizes of the Pipes Needed

Check the pipe used for the water supply and measure its diameter. The measurement typically ranges from a diameter of 1-inch to 1 ½-inches. For the drainage system, it is usually from 1 ¼-inches to 4-inches in diameter. Make sure that the pipes to be used in the installation process will match those that are used in the household. Write down the required fittings for these pipes before heading to the supply shop for purchase. Determine also whether to install a P-trap or an S-trap for the drainage system. Make an estimate of the entire length of the pipes to be used and purchase the necessary materials from the supply store.

Step 3 – Connect the Sink Pipes

Determine the distance of the sink to the sink stub-in and cut a PVC pipe according to the measurement. Fit the pipe to the stub-in first and apply a PVC Primer on the connection. Place a liberal amount of cement on the primer and join the pieces together. Do not let go of the pieces until about 30-seconds have elapsed.

Step 4 – Connect Toilet Pipes and Water Lines

Follow the same process for the pipes that connect the toilet to the drainage pipe. Start by measuring the needed pipes, cut them and follow the connection guidelines above. For the water supply connections needed for the bathtub, shower, and faucets, make sure to turn off the water first before proceeding with the installation of the pipes. Cut the pipes according to the dimensions found in the drawn bathroom plan. When connecting fittings on for the water supply pipes wrap the male threads with Teflon tape. Use an adjustable wrench to tighten the connections.

Step 5 – Install the Drain Pipe

Determine the length of the drainpipe that will run below the bathroom and cut the pipes according to size. Make sure that the drainpipe is installed at a slightly sloped angle. Connect the pipe to the drainage line by applying primer and cement. Connect the drainage pipe to the pipes on the bathtub, the sink and the toilet.