Bathroom Sink Drain Pipe Size

I m adding a second sink in the hall bath about 16in over on its own drop to the sewer drain. It is actually an. However most of the bathroom sinks use 1 inch drain pipe.

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Bathroom sink drain pipe size. So it makes sense to standardize the drain size. The original has a 4way that goes to a2in drain pipe with 1 5 in abs vent pipe. Most bathroom sink drain openings are 1 1 4 inches although 1 1 2 inches and 1 5 8 inches are also common sizes. After installing new bathroom faucets the drain is usually replaced.

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. 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. Diy plumbing videos will show you how to reduce a 1 1 2 drainline pipe to a 1 1 4 drainline pipe. The drainage hole in a bathroom sink must be at least 1 1 4 inches in diameter according to the international code council.

The slender metal coupling nut at the bottom of the drain serves to connect the drain to the sink s lower plumbing fixtures. This size is precisely the diameter of the pipe instead of the length. As with the term on center which is used for construction the term centerline is an imaginary vertical line drawn through a key reference point usually the drain pipe. When you visit a real hardware store or plumbing section the shop assistant will mostly recommend you to use the same size.

Standard size for the drain hole in a bathroom sink. 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. All the pipes that connect to the tailpiece including the p trap assembly. That way bathroom faucet manufacturers can provide the right sized drain with their faucet.

Grip the nut firmly with your pliers and rotate it counterclockwise to the left until the drain and drain pipe come apart completely. This size is actually half as big as one on your kitchen sink drain. While a bathroom sink s design and overall size may vary from one model to the next the drain holes are fairly standard 1 25 inches being a. For example if two pipes are specified to be 10 inches apart you measure 10 inches between the centers of the pipes not 10 inches between the edges of the pipes.