Home Improvement Ideas Plumbing Installations & Repairs How to Install a Shower or Tub Faucet Learn how to properly plumb a shower or bathtub faucet while ensuring optimal water pressure and temperature. By Caitlin Sole Caitlin Sole Caitlin Sole is the senior home editor at BHG. She is a writer and editor with nearly a decade of interior design expertise. She has vast experience with digital media, including SEO, photo shoot production, video production, eCommerce content, print collaboration, and custom sales content. Learn about BHG's Editorial Process Published on June 5, 2018 Close Photo: Alise O'Brien Project Overview Total Time: 5 hours Skill Level: Intermediate Hooking up a shower or tub faucet isn't as difficult as you might think. So long as you're comfortable with accurately measuring, drilling, and working with copper pipe, this project is well within reach. We broke the installation process down into easy-to-follow steps for optimal ease. Expect to spend at least half a day installing a faucet. Before you begin, you'll want to install separate 3/4-inch lines to supply the shower. This extra step ensures good water pressure and protects the bather from temperature changes when another faucet is turned on, or the toilet tank refills. You'll want to tap into the cold and hot water lines as close to the water heater as possible. If necessary, move a stud to make room for the plumbing behind the tub. Once you've chosen the faucet you're going to install, follow the manufacturer's directions for plumbing it. If your faucet doesn't have integrated shutoff valves, install shutoff valves in the lines to the valve. For optimal comfort, position the faucet about 28 inches above the floor for a tub, and about 48 inches for a shower. What You'll Need Equipment / Tools Pencil Drill Flame guard Propane torch Materials Tub or shower faucet 2x6 braces Screws Copper pipe and fittings Hammer arresters Drop-ear elbows Solder Galvanized nipple Pipe-thread tape Instructions Determine the Faucet Placement Most faucets come with a protective plastic cover that serves as a guide for the depth at which it must be set. To determine where to place the braces, consider the total depth of the finished wall—often 1/2-inch-thick backer board, plus 1/4-inch-thick tiles. If you have other faucet setups, such as a three-handle faucet, it may require that supply pipes be spread farther apart than for a single-handle faucet. Threaded adapters screw in for the supplies, spout, or shower arm. A faucet with integral shutoffs comes with a large escutcheon (cover plate) so you can more easily reach the shutoff valves. How to Replace a Tub or Shower Cartridge to Fix Your Faulty Faucet Anchor and Brace Determine where you want to locate the spout (making sure it will clear the tub), faucet handles, and showerhead. Install a 2x6 brace for each. Anchor the braces with screws, rather than nails, so it's easier to move them if they need adjustment. How to Repair Your Tub and Shower Compression Faucet Assemble Pipes Assemble all the pipes in a dry run. Install 3/4-inch pipe up to the height of the faucet, add reducer couplings or elbows, and run short lengths of 1/2-inch pipe to the threaded adapters on the faucet. Add hammer arresters. Anchor the faucet according to manufacturer's directions. Sweat Fittings Once you're sure of the connections, sweat all the fittings. Start at the faucet, then move on to the shower arm and spout connections. Run 1/2-inch pipe up to the shower arm and down to the spout; attach drop-ear elbows at both spots. Tighten and Install Finger-tighten a threaded nipple—either brass or galvanized—into both drop-ear elbows. Once the wallcovering is in place, remove them and install the shower arm and tub spout. 24 Low-Cost Bathroom Updates That Won't Drain Your Savings