Table of Contents
What if new sink drain doesn’t line up with existing pipes?
Move the trap into the position you need it to be under the tailpiece by pushing it to the side. If the tailpiece will not line up with the trap, move the trap into its original position, tighten the collar with the pipe wrench and obtain a flexible tailpiece extension for your drain.
What is the standard rough in height for a vanity drain?
The rough-in height for a sink drain is 20”-24” and depends on the counter, vanity, or trap. Bathroom sinks can have an 18” rough-in but should not exceed 24”. You can adjust sink drain height and depth during the installation process.
How do I connect plumbing to a new sink?
The most common way to connect a new drain, vent, or supply line to an existing line is to install a tee fitting. To do so, shut off water to existing supply pipes and drain the lines. Flush all toilets and caution others not to use drains.
Can a toilet and sink share the same drain?
Without the upper vent portion of the pipe, water locks can form in the drain system. The sink vent serves both the sink and the toilet. The configuration depends upon your bathroom layout and the direction of the floor joists, but connect the sink drain to the toilet drain within 6 feet of the toilet, if possible.
Can you offset a sink drain?
Offset sinks with two drains require a lot of work to hook up compared to single drain offsets. Add the second tailpiece to the other sink drain. Screw the nut at the bottom of each tailpiece to attach a one and half inch trap adapter.
What do you do if P-trap doesn’t line up with drain?
In general, if the P-trap doesn’t line up with the drain, you can adjust the length and height of your drainpipes by cutting them or simply slipping them in and out of their fittings.
Does sink need to be centered with plumbing?
However, centered drains can cause issues when washing dishes. Dishes can easily block a centered drain, causing water and food debris to build up. Centered drains are also not ideal in small kitchens. The central placement of the plumbing below the sink wastes valuable storage space.
How high should the drain be for a bathroom sink?
In the bathroom, the sink drain is typically between 24 inches above the floor. This measurement is based on an average bathroom counter height of 32 inches and a drop-in sink with an average depth of 8 inches.
How high off the floor should a sink drain be?
The standard height of a kitchen sink drain from the floor is between 20 and 24 inches. This varies based on the vanity, sink, and trap.
How high should a sink drain be?
Sink Drain: 18”- 20” above finished floor.
How many elbows can be in a sink drain?
Since you may already have an elbow in the wall, that would make four 90 degree turns and two is normally the maximum number allowed. And when your drain plugs up those extra elbows are going to make it very difficult to unplug it.
Should faucet line up with drain?
Ideally, the flow of water from the faucet should go down the drain. Don’t forget that the faucet usually sits back either on the sink rim if it’s a drop in or a bit farther back it it’s a deck mount. So watch that.
Can I use flexible pipe for sink drain?
Flexible drain parts can be used to quickly connect offset sink drains. It is possible to cut out the pipes under the sink and install a new sink drain using a 45- or a 90-degree bend to make up the difference, but it may not be necessary for a minor misalignment.
Can a sink p trap be angled?
The only way I can get a P trap to fit under the tub is to use a flexible plastic one and angle it sideways (horizontally) about 45 degrees. The inlet and outlet is essentially at the same height as if it were installed the regular way except they are slanted.
Can P-trap be below drain line?
It is not ideal to have the p-trap below the the exit drain because water gravity has to force the water out instead of it flowing downwards naturally. They both work and have seen it many times. But essentially anything below already creates its own p-trap- so using another is redundant.
Does a vanity drain have to be centered?
This shouldn’t be an issue. With the standard P-trap, you can probably turn it so that it goes toward the side instead of towards the wall to get your 9″. The important rule of drainage is that it always needs to slope down (other than the traps at each fixture) and that you can’t get too far from the vent.
Where should the sink drain be located?
Did you ever notice the drain location of the kitchen sinks on the market? The majority of them are either right in the middle of the sink, or the rear center. This design was used by our ancestors thousands of years ago.
What is an offset kitchen sink?
You may be wondering what an offset kitchen sink is. Well, an offset kitchen sink has its drainage off-centered or off-set in relation to the sink faucet. Instead of the faucet being directly above the drain, the drain is off-centered to one side.
Why is 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.
