Bathroom Sink Drain Size Pipe

Some older sinks may have drains that connect to a 1 1 4 inch tailpiece but most modern drains have a 1 1 2 inch outlet. The drainage hole in a bathroom sink must be at least 1 1 4 inches in diameter according to the international code council. Consider drain pipe to be the vertical centerline.

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Every state may have different code on plumbing and it may affect the required size of the bathroom sink pipe.

Bathroom sink drain size pipe. We initially show the p trap bac. Since the pipe is 1 1 2 inch in diameter kitchen drainpipes are also 1 1 2 inches in diameter. After installing new bathroom faucets the drain is usually replaced. However most of the bathroom sinks use 1 inch drain pipe.

Vertically both are about 2 to 3 inches above the drain pipe supply lines horizontal. The drainpipe threads onto this pipe with a connector. The drain has a threaded pipe sticking out below the lock nut that secures the drain to the sink basin itself. I m adding a second sink in the hall bath about 16in over on its own drop to the sewer drain.

About 16 to 20 inches above the floor. That way bathroom faucet manufacturers can provide the right sized drain with their faucet. Kitchen sinks use a 1 1 2 drainline pipe bathroom sinks use a 1 1 4 drainline pipe. The original has a 4way that goes to a2in drain pipe with 1 5 in abs vent pipe.

Bathroom sink materials pros and cons. So it makes sense to standardize the drain size. All the pipes that connect to the tailpiece including the p trap assembly. The hole must also coordinate with the typical size of a bathroom sink drain which is 1 1 4 inches in diameter according to the lincoln county oregon website.

Compare the fixture to the minimum sizes of drainage pipe by fixture table. Most bathroom sink drain openings are 1 1 4 inches although 1 1 2 inches and 1 5 8 inches are also common sizes. One hole is 4 inches to the right of centerline. Other is 4 inches to left of centerline discharge hole vertical.

For instance the minimum pipe diameter for a washing machine drain is pipe with a 1 1 2 inch diameter. P trap installation drain doesn t line up bathroom sink pipe duration. Sink rough in details. This size is precisely the diameter of the pipe instead of the length.

Here we show you how to perform your plumbing p trap installation when the bathroom sink drain doesn t line up. I can drop down with a1 5 in vertical to the 2in drain line fortunately is at the end of the line so that part is easy. The standard size and setting.