Tub shower plumbing diagram

What plumbing is needed for a shower?

The water supply for a shower arrives via two pipes: hot and cold. In construction that is less than 30 years old, these pipes are usually copper. The pipes connect to a shower valve that controls the temperature and flow of water to the shower head.

What size of drain is required for a combination tub shower?

Tub and shower combinations will require at least a 1 1/2- inch -diameter drain pipe and P-trap. A 2- inch drain pipe is better. Shower only units require a 2- inch drain and P-trap. The drain requires a horizontal drop or angle of fall of one-quarter inch per linear foot.

Can I use a tub and shower valve for shower only?

To further confuse you, it’s absolutely possible to make a tub and shower faucet work exclusively as just a shower faucet . This is especially true if the diverter to make the water go to the showerhead is in the actual tub spigot.

What do you call the shower switch?

A shower diverter is the mechanism that reroutes the water from your bathtub faucet to your showerhead. Many shower diverters are controlled by a pin knob that you pull, but there are many types.

How does the plumbing in a shower work?

So here’s how the shower valve works : you turn the trim, which pulls water from your water source. Cold water goes straight to the cold pipe, while hot water makes a stop in the water heater first. Water from both pipes meets at the shower valve, which mixes it together and sends it to the shower head or tub spout.

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How do you replace a tub faucet with no wall access?

How to Replace Tub Faucets With No Wall Access Turn off the water valves at the main incoming water pipe. Remove the cap on the faucet handle and loosen the screw underneath with an Allen wrench. Pry out the clip around the cartridge with a pair of needle-nose pliers. Install a new cartridge inside the faucet head.

How do you replace a shower faucet without the access panel?

If you don’t have an access panel , you might be able to replace the faucet by cutting a hole in the shower surround (Problem 3 below), but the best solution is to install a paintable plastic panel behind the faucet .

Can you replace shower handle without replacing valve?

The handle and trim for the tub/ shower controls can also usually be replaced without redoing any plumbing by using a universal replacement kit (available for most brands at home centers and plumbing supply stores). Turn off the water supply, then remove the shower handle and trim (Photo 1).

Does a shower need a 2 inch drain?

A 2 – inch pipe is the recommended size because showers have a low threshold for flooding, and a 2 – inch pipe helps the water drain faster than does a 1 1/ 2 – inch pipe.

Can a shower have a 1.5 inch drain?

Current plumbing codes (IPC and MA Plumbing Code 248 CMR 10 for example) requires a 1.5 ″ drain for a tub with a shower . The tub of course can drain at leisure and the shower function when in use, with flow-limiting shower heads, fall within the flow rate that a 1.5 inch drain can handle.

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Does a shower drain need a vent pipe?

So, does every drain need a vent ? The answer is yes, every drain from your kitchen sink, to toilet, shower , laundry, floor drain and more all require venting . Vents are the allowance of atmospheric pressure in drains to prevent airlock from occurring.

How do you test new shower plumbing?

Testing the Valve After the shower head is installed (and the tub spout, if using a combination shower and tub valve ), turn on the cold water and let it run for 10 to 15 seconds. Then do the same for the hot side. If testing is being done with air, the procedure is the same.

How do I know what shower valve I have?

Look at the center of the trim plate behind the shower handle to find a brand name or manufacturer symbol. If you see a “K,” the faucet is a Kohler unit; an ” M ” signifies Moen.