According to the Universal Plumbing Code, the standard drain size for a washing machine is 2 inches. The absolute minimum should be about 1 1/2 inches. However, keep in mind that wash load capacities can vary by up to 400% or more depending on the model.
Where is the drain trap on a washing machine?
Do top load washers have a drain trap?
If you have a newer high-efficiency (HE) washer—whether front- or top-loading—the machine doesn’t have a lint trap. Instead, it relies on a self-cleaning pump filter to remove lint from the wash.
How high should drain pipe be for washing machine?
Whirlpool recommends a minimum of 39” above the floor, and GE has a 30” minimum, except that GE allows the top of the drain pipe opening to be lower if you secure the hose to the back of the machine near the top at a place the manufacturer indicates using a plastic “anti-siphon clip” Both manufacturers have a maximum
What is code for washing machine drain? – Related Questions
Can you use a 90 degree elbow on drain pipe?
It’s a bad plumbing practice to have a hard 90-degree bend in a horizontal drain line that’s buried in a slab or otherwise hidden. If you have to make a 90-degree bend, use two 45-degree fittings and put a small piece of straight pipe between the fittings, if possible.
Can a washing machine drain be too low?
The washer drain hose is a 1-1/4″ O.D. (outside diameter). To be confident that no siphoning of water will take place, the drain plumbing must be a minimum of 30″ high for Top Load washers. Siphoning means the washer will fill and drain at the same time. This happens when the drain height is too low.
Does a washing machine drain hose need to be elevated?
Elevating A Washing Machine Drain Hose
To be safe, you should always raise the drain hose above the level of the washing machine. This will keep any siphoning to a minimum. You may also take other measures to make sure you receive the best drainage possible.
Can a washing machine drain be too high?
A washing machine drain can be too high to pump. Washer drain pumps have a specified power rating, so they can only pump out water at a certain flow rate for a particular drain height. If the drain is too high, the flow rate will be too low to push the water out of the washer, resulting in backflow.
Why washing machine drain hose is high?
The drain plumbing should be at least 30″ high to ensure that no water is siphoned. The drain hose must be at least 30″ from the floor and less than 8 feet long in order to operate properly.
How many inches should the drain line be installed off the floor?
The correct rough-in height for sink drains to pass the inspection is between 18 and 20 inches. Standard sink drains usually start from 24 inches and stop at 28 inches, so the rough-in height should be slightly lower than this height range.
What is a good rule of thumb for installing drainage?
According to the DIY Network, to ensure water will drain properly and won’t back up in the drain line, a good Rule of Thumb to follow when installing pipe (or ensuring that a professional is doing it properly) is a drop of ¼ -inch per foot.
How far can a drain pipe run horizontally?
If you have 1 ¼-inch pipe, the horizontal distance of the vent should not be more than 30 inches. For a 1 ½-inc pipe the vent should be 42 inches away at the most while a 2-inch pipe must have a maximum distance of 5 feet.
What is the proper slope on a drain line?
But do you know the proper slope? The ideal slope of any drain line is ¼ inch per foot of pipe. In other words, for every foot the pipe travels horizontally, it should be dropping ¼ inch vertically.
What happens if a drain has too much slope?
Backups: When the slope is too steep or not steep enough, backups can occur, preventing liquids and solids from draining. Excessive erosion: When pipes become clogged due to an improperly sloped pipe, water may be forced around the pipe, causing extreme erosion to the surrounding soil and bedding.
How deep should drainage pipes be buried?
Pipes should be either:
bedded on granular material, minimum 100mm deep, or. laid directly on the trench bottom, where the trench bottom can be accurately hand trimmed with a shovel but is not so soft that it puddles when walked on.
What is the minimum fall per foot for a drain pipe?
It is generally accepted that 1/4″ per foot of pipe run is the minimum for proper pitch on a sewer line. Larger lines such as 8″ pipe actually require less pitch due to the larger circumference of the pipe.
Can a shower and toilet share a vent?
Wet vents are typically used when plumbing a bathroom group. So yes the shower can also be vented by the wet vent along with the toilet. There is one major stipulation when wet venting multiple fixtures when a toilet is one of them: the toilet must be the last fixture connected to the wet vent.
Can you have too much fall on drainage?
If you install a drainage pipe with too much fall – i.e. sloping too steeply – the water in the pipe will flow too fast and leave the solids behind again causing blockages.