I know this has probably been discussed but......I have to install a laundry in the basement where the drain out of the house is about 5' above the basement floor (old house). I have a Liberty 404 to install with the washer and laundry basin. HOWEVER>>>>I noticed I have no access to any pre-existing vent. I do have an adequate access to the drain from the kitchen sink. Can I vent it into the basin as in the pic?? The line from the sewer would have a check valve in it and water above the check valve so no sewer gases could enter the house....
Basement laundry
- Thread starter Sixpoint1
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Redwood
Master Plumber
Why are you pumping the laundry drain?
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Jerome2877
In the Trades
Is there a second pump in the basment then? Looks like your over thinking things, the pump you have installed is doing nothing as you could have tied in to the drain to the left of the washing machine. The only problem would have been venting.
hj
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The way you have done it is the safest as far as preventing basement flooding. as a practical matter, the pump, in this case, would work just as good without a vent if the sink did not have a trap. Therefore, what you have will work just fine. Did you install the "Y" for the pump, and if so, what is that black band above it?
Jimbo
Plumber
hj...I think the band you asked about looks like a pipe hanger strap. Are you saying it is OK to vent the sump to atmosphere like that? Despite the check valve, I think that sump will get pretty full of sewer smells????
hj
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quote; I think that sump will get pretty full of sewer smells????
From where? all that will be going into it is the laundry drainage, and it will be cleared out everytime the pump operates.
From where? all that will be going into it is the laundry drainage, and it will be cleared out everytime the pump operates.
Everyone.....I am sorry I was not more clear. The picture is NOT of my system. I just used it as a reference as what I would like to do. I know the setup in the pic is wierd but in my case, the sewer line is 5-6' off the floor, I will have to pump the laundry drain up to it.
Redwood
Master Plumber
Oh okay...
You do need a real vent that goes through the roof.
Stank would be a factor...
You do need a real vent that goes through the roof.
Stank would be a factor...
Gsalet
George the Plumber
You should have a vent to be up to code, but if you installed a Mechanical vent it would work fine they are legal in some localities. Check with your building department
Redwood
Master Plumber
It's just the water won't go into the 404 is all....
ok....here is a pic of my setup. I just bought this old house and have to put the laundry in the basement. The two small lines are the water supply to the laundry basin. The big sewer line is the main sewer leading out of the house.. The 2" line is the last one that enters the main line before it leaves the house. The 2" line comes from the kitchen sink (that's it). There is a vent coming out of the roof above the kitchen sink. I can't get into the wall and vent because all the cabinets are in front of it. Is it possible to wet vent this? Here's what I was thinking although the kitchen is not on the same floor.
Thanks for all the help.....
Thanks for all the help.....
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Redwood
Master Plumber
No a vent would have to tie in above the flood rim of highest fixture on the line. A drain with waste flowing in it is not a vent.
Check your code for actual distance above the flood rim.
Check your code for actual distance above the flood rim.
Cacher_Chick
Test, Don't Guess!
What you are not considering is that you can run the vent up to the ceiling and then continue it horizontally (with pitch) to wherever there is a wall in which to run the vent up to the roof.
Also, if the stack is accessible in the attic, the vents can be tied together there if you want to avoid putting a second penetration in the roof.
Also, if the stack is accessible in the attic, the vents can be tied together there if you want to avoid putting a second penetration in the roof.
hj
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A drain is a drain, so you cannot tie a vent into it, (if for no other reason that if the line were to become obstructed, the sink drainage would use the vent as an alternate path and dump everything into the pump basin), but now the question is WHY is the main line in picture #2 four feet above the ground, but only 12" in the first picture?
Ballvalve
General Engineering Contractor
I would tie it into the sink drain and be done with it quick. If any problems arise, it can be vented later, but I doubt it will cause any issues at all.
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