Quck answer
To cap an old shower drain, follow these steps:
1. Clean the drain thoroughly to remove any debris or residue.
2. Measure the diameter of the drain opening to determine the size of the cap needed.
3. Purchase a drain cap that matches the size of the opening.
4. Apply a layer of plumber’s putty around the rim of the drain opening.
5. Place the cap over the opening and press it firmly into the putty.
6. Use a wrench or pliers to tighten the cap, ensuring a secure fit.
7. Test the cap by running water into the shower and checking for any leaks.
8. If there are no leaks, your old shower drain is now successfully capped.
Removing an old shower from your bathroom can completely transform the space. Installing a new shower enclosure can give you a fresh start, or you may prefer to eliminate the shower altogether to create a more spacious feel in your bathroom. However, simply removing the shower is not enough. If you do not plan to install a new shower, you will need to seal the old shower drain pipe to prevent sewer gases from entering your home and to finish the floor over the pipe.
Determine the Correct Size
To determine the correct size, measure the diameter of the drain pipe by placing the tape measure over the pipe wall on one side and measuring across the center of the pipe. Shower drain pipes are typically 2 inches in diameter, but drain pipes can range from 1 1/4 inches to 4 inches. It is also important to note the material of the pipe. Lead pipes are not common except in older homes built in the early 1900s. If your pipe is made of lead, consult a plumber. Otherwise, your shower drain pipe is likely made of plastic, copper, or cast iron.
Clean and Prepare the Pipe
Apply a generous coating of pipe cleaner or primer around the outside of the pipe to remove oil, grime, and other contaminants and allow the cap to better seal to the pipe. Follow the product manufacturer’s instructions for application. Spread a generous coating of pipe cement around the exterior of the drain pipe if it is made of white PVC or gray ABS plastic products. Apply three rounds of cement to the inside of the drain plug fitting.
Install the Drain Cap
For PVC or ABS drains, fit the cap over the drain pipe and twist it slightly to lock it into place. Avoid overtightening, which may damage the pipe or connection. Allow the cement to cure and dry for the time specified by the manufacturer or a minimum of 24 hours. For a cast iron pipe, slide a cap designed for this material over the top of the shower drain pipe and tighten the metal strapping around the cap to ensure an airtight seal. For a copper drain pipe, use 120-grit emery cloth to scuff the pipe’s surface, and treat the inside of the cap pipe fitting with a wire brush.
To connect a pipe fitting, first apply flux to the exterior of the pipe and the inside of the cap fitting using an acid brush. Push the cap over the drain pipe and ensure it fits snugly. To solder the copper connection, place a fireproof material around the pipe to protect surrounding surfaces. Heat the connection with a propane torch until the flux inside liquifies. Apply lead-free solder to the pipe beneath the cap, and encircle the entire cap-to-pipe connection with the solder. After examining the joint for holes or gaps, wipe away excess solder and remove the heat shield.
FAQ
1. How do I cap an old shower drain?
To cap an old shower drain, you will need a few tools and materials. First, start by removing the old drain cover using a screwdriver. Next, clean the drain opening to ensure it is free from any debris or residue. Then, measure the diameter of the drain opening to determine the size of the cap you will need. Purchase a drain cap that matches the size of your drain opening. Apply a layer of silicone adhesive around the edge of the drain opening and press the cap firmly into place. Allow the adhesive to dry according to the manufacturer’s instructions before using the shower again.
2. Can I cap a shower drain without removing the old one?
Yes, it is possible to cap a shower drain without removing the old one. One method is by using a drain plug. These plugs are designed to fit into the drain opening and create a seal to prevent water from flowing through. Simply insert the drain plug into the drain opening and push it down until it forms a tight seal. Another option is to use a drain cover that can be placed over the existing drain cover. These covers are typically made of rubber or plastic and can be easily installed by placing them over the old drain cover. Both methods provide a temporary solution to capping an old shower drain without the need for removal.
3. Is it necessary to cap an old shower drain?
Capping an old shower drain is not always necessary, but it can be beneficial in certain situations. If you have a shower that is no longer in use or you are renovating your bathroom and want to prevent any debris or odors from entering the drain, capping it can be a good idea. Capping the drain can also help in preventing any accidental spills or leaks from going down the drain. However, if you have a functioning shower that is regularly used, it is not necessary to cap the drain as it can impede the normal flow of water. In such cases, regular cleaning and maintenance of the drain should be sufficient.