First time post, but longtime FH fan.
The homeowner I’m doing some work wants to consolidate the space in his utility room by eliminating the utility/wash tub. I’ve been asked to plumb the outflow tube from a washing machine directly into the sewerline inlieu of hooking the tube over the side of utility/wash tub.
This doesn’t sound like it would be a problem, and I’m guessing I’ll have to still install a trap to keep gases from backing up and out of the washing machine.
But the request caused me to pause because I’ve never seen a washing machine used without the utility/wash tub set up.
Am I overthinking the obvious, or is there anything else I should be aware of in regards to this setup?
Thanks.
Replies
I'm a homeowner. One of the first things I did when we bought our house was to have the washing machine hooked up directly to the waste line in the basement. (The washing machine backs up to the waste line.) It had emptied into the utility sink, as does the sump. I was warned by the former owners that if they both happened to be on at the same time, the water would overflow the sink. Also, as a new owner the sound of rushing water in the sink made me extremely nervous. I kept having to check the basement to make sure the washing machine wasn't overflowing.
The plumber installed a trap just past the connection. The connection itself is a vertical pvc pipe into the waste line and a rubber tube from the washer going up and then down into it. It all works fine. No bad odors are coming from the washing machine.
hey mtz first of all welcome to BT
Oh those pesky codes will get ya every time.
Yes you need a trap
trap serving a clothes washer standpipe shall be on the same floor not less than 6" nor greater than 18"
the standpipe will be at least 18" but not more than 30"
The connection is indirect usually rubber hose from factory bent 180 degrees slid into 2" standpipe. with a 2" trap
the standpipe will be at least 18" but not more than 30"Is this refering to above the trap?We like to have the top of the stand pipe min. 36"above the finished floor. Some washers will siphon out if the drain hose is not above the top of the tub water levelwhen full.
I goy mine above the machine just so I can hook up the hoses without having to move the machine. mine is proberly close to 48 from floor
Yes the stand pipe length above the trap is what the UPC code is reffering to 18 to 30 inches
my observation on the last picture is the wrong fitting on waste line shouldnt it be a sanitary cross . the fitting used should only be used in a vent situation , also shouldnt hammer aressters be located on your hot and cold water supply lines .
if you are talking about my picture, look close, it is a sanitary T. as far as hammaer arrester, they was added later, if you notice the copper is not connected completely.
If you're reffering to brownbags post that is a 3" sanitary cross with what looks to be 3x2 bushings in it.
I'm not sure about the 3" combo <combination wye & 1/8th bend> that's coming into the top of it though.
Should have shock arrestors but if ya look at the pic the waters are not connected to the valves yet.
I'm not sure about the 3" combo <combination wye & 1/8th bend> that's coming into the top of it though.The county makes us add cleanout, from outside on all uphill passes to tank. must be same size as drain.
Oh that makes sense.
Yeah, it is unwise to have a cross on a high-volume waste line like a washing machine. You can have water shooting across, causing gurgling in the opposite drain.
plumbbill is right, the only thing I do that is different is to increase the size of the stand pipe out of the 2in. p-trap to 3in., this gives you a little more volume if you use sudsy detergents. Lots of luck.
As the other posts have mentioned you need a trap, I would also look into a gray box looks a little cleaner than just a stand pipe.
Don't forget that you may need a vent, too.
Al Mollitor, Sharon MA
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Dejavu?
G8, just saw your pic attachment in this thread. Very nice looking job, not thrown together but neat, clean and uniform. Just how I like it.If at first you don't succeed, try using a hammer next time...everything needs some extra persuasion from time to time. -ME
Check out the floodsaver either in their ads in the mag or at their webbsite. I like their product, used it several times. In fact I think I was the first Canadian to use it.
Have a good day
Cliffy
I have never seen a house with a ulity tub in my whole life. nobody does it that way around here, nobody at all. we just do it like the last picture. no vent, just a 40 inch pipe with a p trap. This is the one in my house.
"no vent" your pic shows a vent
the verticle pvc coming out of the top of that san-cross is a vent judging by the combo you have in there it looks like a wet vent but still a vent
Looks to me like there IS a vent. That 3" stack is close enough to the 2" trap to vent it.
Al Mollitor, Sharon MA
By the way...great photos, guys.
That is vented. The vertical pipe out the top of that X-type connection is the vent.In any event, your picture shows the classical configuration.
You need a standpipe -- a vertical piece of pipe about 3 feet long, connected to a trap at the bottom. The hose from the washer fits loosely into the standpipe.