The hardest thing to do is install an in wall box auto washer box when it is called for.
Washer box plumbing diagram.
If it is exposed not in a wall the 45 is not used.
Code for the trap stand pipe connecting to the box is as follows.
The plumbing code states that a 1 1 2 trap arm may not exceed 42.
Laundry room plumbing diagram google search.
They can also tell you how to properly vent your pipes pointing out which one of the systems works best while satisfying local code.
I can set the 2 waste and the hot.
Since most clothes washers back are 42 tall i usually put the bottom of the box at 42 so the valves drain connections can be accessed.
I was a master plumber at age 28 in hamilton county ohio.
For the record i m a master plumber among other things.
Some washer boxes will also have water hammer arrestors built in see picture to lessen the effects of water hammer caused by the fast acting washing machine solenoid valves.
During this phase it is highly recommended that you consult a plumbing inspector after measuring the length of your pipes.
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Ten years later i sat and passed the master test for the city of cincinnati and got my masters license.
Many washing machines are self leveling.
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The washer drain hose hooks to a standpipe or a sink which has a p trap that connects to a house drain line.
A washer box comes complete with a hot and cold faucet connection as well as a stand pipe hole for the drain easily mounting between wall framing members.
Plumbing a washing machine drain has always seemed easier to me as there is no fixture to install.
He s scratching his head about the correct way to vent a washing machine and needs a venting diagram.
The drain for either of these must slope down at a rate of 1 4 inch per running foot.
Oatey washing machine outlet boxes can be used in commercial or residential applications that require supply valves and waste drains recessed into the wall.
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Trap serving a clothes washer standpipe shall be on the same floor not less than 6 above the floor nor greater than 18.
No trip back after the counter top is installed and the floor is done.
Is the stand pipe the 45 degree elbow at its top is to bring the opining of the drain out though the face of the wall.