09:51AM | 12/19/02
Member Since: 12/18/02
2 lifetime posts
I am doing renovations to my basement that includes relocating my laundry

The new location is not practical to reach either of the two waste stacks. My intent is go through the floor into the main, as I would with a basement toilet.

My concern is with the venting. By taping into the main (horizontal) I am not geting the benefit of venting that taping into a stack (vertical) would give.

I can't see any way of adding venting other than going into the basement ceiling, than across into an existing stack. would this work ? is it required ?? is there an better way ??

The location is about 12 away from each of the exisiting stacks, and directly over the main.


01:33PM | 12/19/02
Member Since: 11/17/02
50 lifetime posts
When you tie a drain into the stack, you have to make sure your tieing it into a drain first. Even if you tie it into a drain, every fixture has to have its own vent. A vent prevents the trap on the fixture from being syphoned every time the fixture is used. A vent should rise up from the vertical or horizontal drain at no less than a 45 degree it can then run a fairly long distance horizontally (6" higher than the fixture). If you have other vents in the basement, (laundry tub or bathroom) you can tie the vent into these vents. All vents eventually tie into the main vent and exit the roof, pretty much an upsided down mirror of the drain system, only smaller. Vents generally have to run horizontally pitching slightly up hill so condensation can run back to the fixture drain. Once a vent gets higher than the fixture it can run horizontally always up, but it cannot turn down again unless it ties into another vent. You cannot create a situation in a vent system where water can gather and block off the vent, this is called trapping the vent. A no no.
Good Luck
Plumbing Prof
Anoka Hennipin Tech College


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

They aren't technically weather vanes, as they don't tell you which direction the breeze is blowing. But they spin, move, ... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... For some decorative recycling, consider burying old bottles upside down to create edging for your garden beds and walkways... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon