COMMUNITY FORUM

Dave Anderson

02:56AM | 11/25/02
Member Since: 10/23/02
41 lifetime posts
Bvplumbing
We're adding a second story addition to our home and I have some questions about where to locate the vent. This is on a side of the house that has an exsisting vent right off of a sink directly below the proposed lavitory.

As I understand it, as water flows down the sewer line, it pushes the air out the vent eliminating an air lock.

Therefore, I'm thinking that the vent needs to be located as close as possible to the 4" stack in the basement as I can get. (This is attainable as we just had a new stack put in this summer). However, would the existing vent located off of the first floor sink do the trick since it is located off of the first floor and not the basement?

Secondly, is 1¬Ω" PVC adequate, or does it need to be 2"? This is residental, with a septic system.

Thanks in advance,

Dave Anderson

raymondvinzant

07:37AM | 11/27/02
Member Since: 11/17/02
50 lifetime posts
Your vent for a bathroom needs to be at least 2" in diameter. You should run a vent up from the fixtures to the roof or to the vent in the attic and re-tie to the existing stack. Each fixture in the bathroom needs to have an individual vent, which is within 42 inches for an 1-1/2 drain, 5 feet for a 2 inch drain and 4 feet of a toilet. The vent is a continuation of the drain line and must run vertically to at least 6 inches above the overflow rim of the fixture it is serving. All vents can tie together before extending up to the roof, much like the branches on a tree. Remember the flow of air needs to run to the roof and so some pitch on horizontal sections is necessary, to keep water from condensing in the pipes and building up. All drain lines must be pitched at 1/4 inch per foot.
Good Luck
Ray
Master Plumber
Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

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

Reply_choose_button

captcha
type the code from the image

Anonymous

Post_new_button or Login_button
Register

Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... 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... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp2