QA

Question: How To Install Shower Drain Pipe

Do you put P-trap for a shower drain?

According to regulations, all shower drains are required to have P-traps. This includes all fixtures connected to a building’s main plumbing system. P-traps are curved pipes installed under showers and drains of all kinds. This pipe really is an essential component in your home’s plumbing system.

How do I install a shower drain with no access from below?

How to install shower drain without access below: Remove the existing shower drain. Measure and cut the assembly parts. Clean the area and pipes. Assemble and install the new drain. Apply a sealant and tighten the shower drain. Clean excessive sealant. Install strainer cover. Conduct a leak test.

What kind of pipe do you use for a shower drain?

Keep in mind that shower drain assemblies are generally made to fit a 2-inch drainpipe, not the 1 1/2-inch pipe usually found on tubs. 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.

Where should the drain be placed in a shower?

Point drains ideally sit in the middle of the shower floor or by the end of the wall. Either way, the water drains downward by a slope in the bottom. When placed by the wall, the floor is sloped sideways.

Where should a shower drain be placed?

The shower drain has to be at the lowest point of the shower floor, and so the floor has to slope down toward the drain from all directions. If the drain is in the center of the floor, you’ll have a relatively level space around the drain to stand on.

How far can P-trap be from shower drain?

The maximum distance between the shower drain and the P-trap is 5 feet. However, the P-trap should be as close to the shower drain inlet as possible. You should even have the P-trap directly under the shower drain for the best results.

Can I use 1.5 inch pipe for shower drain?

Current plumbing codes (IPC as well as MA Plumbing Code 248 CMR 10 for instance) need 1.5 inches to drain for a tub with a shower. The tub can drain at leisure and the shower function when in utilize, with flow-limiting showerheads, fall within the flow rate that a 1.5” drain can handle.

Does a stand up shower Need AP trap?

Yes, shower and tub drains require a trap in the plumbing to prevent harmful sewer gases from coming into the home.

What do you put under shower base?

Mortar is recommended to use under all shower pans. Mortar reduces the risk of your pan slipping or cracking from an uneven surface.

How much slope does a shower drain need?

In a stall shower, the plumbing code requires the floor to be sloped one quarter (1/4) of an inch per foot in order to carry the water effectively to the drain. This slope, according to the TCNA Handbook is called “sloped fill” or commonly known as the pre-slope.

Can you use plastic pipes for showers?

Plastic pipe is the easy-to-use plumbing solution for running under floorboards and up behind stud walls. Always use pipe inserts at joints to stop plastic pipe deforming. Include a shut-off valve on both hot and cold supplies as close as possible to the shower.

Why is ABS pipe no longer used?

Manufacturers used the regrind or recycled plastic as a way to reduce costs and make ABS pipe more competitive with PVC pipe (which has a lower resin cost than ABS); it was generally not done for environmental reasons. Nov 1, 1994.

How far should a shower drain be from a wall?

The drain hole should be a minimum of 12 inches away from the wall and 9 inches in scope. To rough in the drain, use a 1.5-inch pipe.

Does it matter where the shower waste is positioned?

technically, the trap far away from shower exit as possible to prevent slipping in water when exiting. pratically, nearest place possible for trap maintenance.

How deep is a shower drain?

While a shower usually requires a 2-inch drain pipe, the vent pipe must be either 1 1/2 inches or 2 inches depending on local requirements.

How high should a shower drain be from the floor?

Getting Started. Make sure your drain pipe is at the appropriate height (approximately 1/4 inch above your concrete or subfloor).

How much fall should a shower base have?

To efficiently drain, the recommended minimum slope for a shower floor is about 4 percent, or a 1/2 inch drop per every 12 inches from the shower walls to the drain. In traditional tile shower construction, this slope is established in the mortar pre-pan.

What size is a shower P-trap?

Trap Size. The usual size for a shower drain trap is 2 inches, which is the diameter of the trap. This size is the minimum size that is allowed, which means that you cannot install a trap with a smaller diameter, or the trap is not within code.

Does P-trap need to be below drain?

It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally. They both work and have seen it many times. But essentially anything below already creates its own p-trap- so using another is redundant.

Does a tub drain need a trap?

Does a bathtub need a P-Trap? Yes, you should always install a P-Trap as part of the plumbing of a bathtub or any other wastewater drain system. Failure to include a P-Trap could result in foul smells, harmful gases, and small animals entering through your tub’s drain.