Is a 1.5 drain OK for a shower?
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.
What size pipe should a shower drain be?
2-inch
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.
What kind of pipe do you use for a shower drain?
PVC Pipes
PVC piping is generally used as part of a sink, toilet, or shower drain line, though it’s sometimes used as a home’s main water supply pipe.
Can a shower drain be 2 inches?
Some shower drain size issues that bother you.
The size of the shower drainpipe is often required for home renovations or construction sites. Normally, the size of a typical shower drainpipe is 2 inches. And, by the requirements of the building code, the size of the drainpipe should be 2 inches.
How many gallons per minute can a 1.5 inch drain handle?
A 1 1/2 in. drain can easily accommodate 4.9 gpm for cast iron and 8.3 gpm for PVC.
What is code for shower drain?
P2708.
Shower drains shall have an outlet size of not less than 11/2 inches [38 mm] in diameter.
Can I use flexible pipe for shower drain?
Yes, the flexible accordian-style sink drains / waste pipe are sold at the local hardware stores. That doesn’t mean that they are a good idea to install under your bathroom sink. These flexible drains are commonly poorly installed, and likely to leak.
Do they make a 1 1 2 shower drain?
For more than 20 years, many plumbing codes have listed the minimum shower drain as 1 1/2 in. This was based on the lowering of the showerhead flow rate to 2.5 gal. per min. As the plumbing engineers pointed out, a 1 1/2 in.
What size PVC pipe is used for shower drain?
two-inch pipe
The 1½-inch size is used to capture water that might flow out of a kitchen sink, a bathroom vanity or a tub. The two-inch pipe is commonly used to drain a shower stall or washing machine, and it may be used as a vertical stack for a kitchen sink.
Are flexible drain pipes any good?
The quick answer is that they have a tendency to clog at a much greater rate than smooth-walled pipe. Plumbing standards today require a smooth-walled pipe capable of self-cleaning to be used for sink drains and waste pipes.
Are flexible P traps against code?
When you use a flexible p trap, you’re more likely to get the shape wrong, and you’re more likely to accidentally misshape it when you bump the pipe. Or when you bump it, the force might cause it to spring a leak. When you go to sell the house, the building inspector will take a dim view of these. They’re against code.
How many GPM can a 1 1 2 drain handle?
A 1 1/2 in. drain can easily accommodate 4.9 gpm for cast iron and 8.3 gpm for PVC. While the flush typically occurs within 12 seconds, the flow levels out quickly in the drain.
Can I use flexible pipe for drain pipe?
Flexible drain parts can be used to quickly connect offset sink drains. If you have ever been a little short on pipe or had drain trap fittings that were just shy of the necessary length or angle, you’ll appreciate the usefulness of flexible drain parts.
Why is an S trap illegal?
The “S” trap is prohibited under the Uniform Plumbing Code throughout the United States. This is because the “S” trap will siphon or suck water out from the trap which will end up releasing methane (sewer) gases into the home. So, it is a code violation and if you are doing remodeling, you will have to replace it.
Which is better P-trap or S-trap?
P-traps are generally considered by most to be more effective and consistent in maintaining water trap compared to S-traps. Their design makes them less vulnerable to drying out and losing seal: a properly installed P-trap will never lose its water seal.
What can I use instead of S-trap?
“S” trap drains have been prohibited for decades and have been replaced with a “P” trap drain. To visualize an “S” trap drain, just look under your sink to see if the drainpipe forms an “S,” with the drainpipe going down through the cabinet floor almost directly under the sink.
Why is an S-trap illegal?
Should a shower drain have a trap?
Yes, shower and tub drains require a trap in the plumbing to prevent harmful sewer gases from coming into the home.
Does a shower drain need a trap?
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.
How far below shower drain should P-trap be?
Maximum Distance
However, the Universal Plumbing Code stipulates that the total developed length of all tailpieces, arms and fittings connecting the drain to the p-trap must be 24 inches or less.
Can a shower and toilet share the same drain?
The general answer is that the showers and toilets can use the same drain, but they should not be sharing the same waste trap arm. There are other factors to consider as well, such as whether your drains lead to the main sewer line, or if there are septic tanks that are used in your city or town.
Why does my shower drain smell like sewer?
Leaky Pipes
Leaky pipes in your bathroom walls or under the shower will allow sewer gases — also known as hydrogen sulfide — to escape, so you may notice the shower drain smells like rotten eggs or sewage.
Does a shower drain need a pea trap?
Do I need to vent shower drain?
Vent Pipe Requirements for Showers
It’s easy to forget, but it’s a vital and required part of any plumbing fixture drain. The vent pipes remove sewer gases while allowing air into the system to help the water drain. Without a vent, your shower won’t drain correctly.
Can a tub and shower share a 2 drain?
Yes, they will both be using the same drain pipe at somepoint inside or outside of your house. But the the pipes must join well below the level of both items or the pipe must be large enough for the combined flow, otherwise when you put water down one of them, it will flow out of the other!