What size are sink supply lines?

Standard Sink Supply Line Size



The main pipes, which are the ones that come off the main water supply and the water heater, are 3/4 inches in diameter. The branch lines, which are the ones that feed individual fixtures, are 1/2 inch in diameter.

How long should sink supply lines be?





Rough-In Dimension Terminology

Toilet Sink
Supply Line (Horizontal) 6″ max from center 4″ to left and right of center
Discharge/Drain Hole from Back Wall 12 1/2″ N/A
Discharge/Drain Hole (Vertical) 0″ 16″ to 20″
Fixture (Side to Side Buffer) 15″ to 18″ min 15″ to 20″ min

What is the standard size water supply line?

The most common pipe diameter for water mains is 6 to 16 inches, with 8, 10, and 12 inches also being used. Branch lines providing service to individual homes, offices, buildings, and businesses vary in size from as small as half an inch in diameter up to 6 inches.

Are faucet supply lines NPT?

Plumbing fitting are commonly referred to as “NPT”, however, in reality, nearly all faucets are actually “NPS”. NPS is the North American “STANDARD” for faucets, regardless of brand, style, application, etc. Outside North America, BSP is the most commonly used standard.

What size is kitchen faucet supply line?

A standard residential faucet supply line has a 3/8-inch compression fitting on one end and a 1/2-inch female NPT fitting on the other.

What pipe is best for water supply?





Galvanized Steel or Iron



Although still considered safe for water pipes, these pipes eventually corrode and begin to leak, and should be replaced with copper, CPVC, or PEX pipes. Due to corrosion and short service life, galvanized steel pipes are often the reason for replacing the entire plumbing system.

Are braided water supply lines better?

Stainless steel braided flex tubes are appropriate for both hot and cold water lines. Braided stainless steel is usually the most expensive option for flexible supply tubes, but is also the most attractive and most durable.

How long do flexible water supply lines last?

around 10 years

“Our research shows that flexible hoses only last around 10 years and as they’re typically out of sight and out of mind, it’s not something you’re probably thinking about replacing,” said Cheryl Chantry, Executive General Manager, Short Tail Claims for IAG.

How often should you replace faucet supply lines?



Here are the expected lifespans for common supply pipes: Copper Pipes: 70-80 years. Brass Pipes: 80-100 years. Galvanized Steel Pipes: 80-100 years.

What thread are sink hoses?

The two most common are 3/8- and 1/2-inch compression or male pipe thread. Faucets connectors aren’t completely standardized, but most have 1/2-inch male pipe thread connectors.

What kind of threads are on a sink faucet?

In the United States, the thread size are 15/16″-27 for standard-sized male and 55/64″-27 for standard-sized female.

What is standard faucet thread?



Typical “Regular” size for a faucet aerator is 15/16″ male threaded or 55/64″ female threaded, while “Junior” size is 13/16″ male threaded or 3/4″ female threaded. Some faucets use a smaller “Tom Thumb ®” metric-size aerator, which is M18x1 male threaded or M16x1 female threaded.

How many fixtures does a 1/2 water line have?

Including minimum fixture branch pipe sizes

Individual fixtures Minimum fixture outlet pipe size Number of units
Laundry sink 1/2 inch 1.5
Lavatory (wash basin) 1/2 inch 1.0
Shower (per head) 1/2 inch 2.0
Water closet, 1.6 GPF gravity tank 1/2 inch 2.5

How are supply lines measured?

Quote from the video:
Quote from Youtube video: Use a ruler or measuring tape to find the circumference or the length between the tip of the string.

How do you install a supply line for a sink?

Quote from the video:
Quote from Youtube video: We want to feed my supply lines directly through my sink. Now what we're going to do is once you finish making the connections for your faucet.

Do you use Teflon tape on water supply lines?



What is Teflon Tape Used For? Standard PTFE tape is quite versatile and is used to seal water, gas, and air from leaking through threaded connections, most effective on high-pressure lines. However, there are also specialty thread seal tapes geared towards a specific task or need.

How do you connect supply lines to a kitchen faucet?

Quote from the video:
Quote from Youtube video: Turn the nut clockwise. Tighten the connection using the decent.

Do faucets come with supply lines?

Measure for Supply Tubes



New faucets often come with supply tubes included, but these tubes aren’t always long enough or equipped with the correct threads for connecting to the shutoff valves.

Do you put plumbers putty under faucet?

Apply a bead of plumber’s putty or silicone caulk around the bottom of the faucet or the faucet holes on top of the sink, if called for in your instructions.

How do you connect supply lines?



Quote from the video:
Quote from Youtube video: Every settlement in the Commonwealth. Sends one provisioner to and from your central hub if you choose this method your supply lines are still going to work every settlement is going to be connected.