Under both the International Residential Code (IRC) and the Uniform Plumbing Code (UPC) the standard size for a tub drain and P-trap is 1 to 1/2 inches and under the IRC the tub waste arm (drain line) maybe 1 to 1/2 inches but under the UPC (Uniform Plumbing Code) a 1 to 1/2 inches drain line is limited to 1dfu ( 21 Feb 2021
Can I use 1.5 inch pipe for shower drain?
Use a 1.5" trap if the drain line is to going to be 1.5" diameter. This is very serious, not to be disregarded. Ask a Master Plumber if you need to hear it again. You may wonder why you see on the internet that showers need 2"
What size PVC pipe is used for shower drain?
two-inch
What size are most shower pipes?
1/2 inch
What is code for shower drain size?
11/2 inches
What size does a tub drain need to be?
1 1/2 inches
Can showers have a one and half inch 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.21 Feb 2021
Should I use 3 or 4-inch drain pipe?
Waste drain pipes for toilets in modern plumbing systems are either 3 inches or 4 inches in diameter. The wider the pipe, the more waste it can move and the less likely it will be to clog. A 4-inch pipe can carry about twice the waste of a 3-inch pipe.Waste drainWaste drainThe venting system, or plumbing vents, consists of a number of pipes leading from waste pipes to the outdoors, usually through the roof. Vents provide a means to release sewer gases outside instead of inside the house.https://en.wikipedia.org › wiki › Drain-waste-vent_systemDrain-waste-vent system - Wikipedia pipes for toilets in modern plumbing systems are either 3 inches or 4 inches in diameter. The wider the pipe, the more waste it can move and the less likely it will be to clog. A 4-inch pipe can carry about twice the waste of a 3-inch pipe.