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Repipe Kitchen Sink- No vent

4 years ago

Hi Everyone- quick and probably easy- Moved into house, previous homeowner was not a successful DIY from many of the projects done.

Anyways, noticed slight leak under sink, (probably had happened before as well. Once I began examining it, it doesn't look like it vents. I will probably go with an Oatey sure vent, but not sure how to lay out the piping as the outlet seems to be almost directly below the sink, where many of the diagrams I've seen show it going out the back. How would I go about this? Yes ignore the rotted wood- that's next.

Featured Answer

G D

4 years ago

Electric and plumbing should be left to the professionals. The people we purchased from also thought they were the king and queen of DYI and sadly these people sucked at it.

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Comments (9)

Robert Maestrey
4 years ago
call a licensed proffesional...and if this is a mobile home make sure the company you call works on them
Seabornman
4 years ago
The vent should be in the wall somewhere, not visible in the cabinet. Does the sink gurgle and drain funny? If so maybe there's no vent. I've lived in several houses with unvented plumbing. As long as it drains, I'd live with it. BTW, if that's a dishwasher hose, it should be looped up high in the cabinet.
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They may seem strange to you, but certainly just part of everyday life for people my age who remember when there were no paper towels and you did hang your wet kitchen linens on a bar attached to the inside sink cabinet's door, hidden from view. You also sometimes stored your mop buckets under there along and yes......maybe even your spuds and onions, damp cleaning brushes, your dish racks and drainers because most people didn't have dishwashers. It was a 'wet' environment. Like said by another poster, often the vents were just slots in the wood in the really older wooden cabinets. No........it didn't mean you had a 'problem' is was just the way is was then Brickeye. I assumed you were old enough to remember stuff like that but you must not be. You often even found vented doors in the metal kitchen cabinets popular in the forties...but not a separate vent like that. It may have even been retrofitted and not original with the cabinetry you had.....by then, judging from the style the vents were disappearing because there was the expectation of tightness in homes. I told you it wasn't 'decoration' it was for aeration and it is for aeration and had a purpose.
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I have used a lot of these and they work fine. You have to find out if they are accepted by your local code. If they are, I wouldn't worry about them. Another advantage is if something ever gets clogged up, they can be unscrewed in about 10 seconds and they make an easy place to run a snake. I just went through this in one of my apts. The tenant had poured a mixure of dirt and water from a plant pot in the kitchen drain. I unscrewed the vent and went down with a small snake to clear it out. Worked great.
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I am just curious if the home inspector caught this when you bought the house. This screams really bad DIY to me. I would start looking at anything that could have possibly been remodeled. I would probably fix it, just because I personally couldn't stand to be reminded of the stupidity every time I opened up the sink. Can you please crawl under the sink and take a few pictures for us that illustrate the opening where the sink and counter meet? Lets see if the shelf brackets are holding up the sink. You almost certainly have a vent back there. It also looks as if they pipe coming out of the disposal is sloped up, but that could be the picture. It looks like the very short pipe running parallel to the back wall between the two ells is also running up. The electrical wire comes in through something (I have no idea what that is, but if someone crammed their underwear into that hole, move now) then takes a trip around the barn, and visits the bottom of the cabinet and eventually gets to the disposal...
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Joe P
Original Author
4 years ago
well there is definitely a vent in the basement, but shouldn't there not be an "s" trap but just a P
Seabornman
4 years ago
When you have to go down through the bottom of the cabinet that's how it's done.
PRO
Joseph Corlett, LLC
4 years ago
last modified: 4 years ago
"The vent should be in the wall somewhere, not visible in the cabinet."

Wrong. It's called a Studor and is located between the trap and wall. Quite visible in the cabinet. Inspection allows them when the trap is too far from the main stack/vent.
Joe P
Original Author
4 years ago
Joe, thank you. the studor is an AAV, similar to what everyone calls a cheater vent right?
However, down in the basement it doesn't look like it goes to a vent stack unless that's the same pipe the waste goes out.
Bruce in Northern Virginia
4 years ago
It appears that you have an S trap (no longer allowed) and it does not have a vent. A Studor vent would work to fix a vent problem, but you still have an S trap.

The risk with an S trap is that suction from water going down the drain may pull the water out of the trap and leave you exposed to sewer gas. A P-trap with a vent (either a vertical pipe in the wall or a Studor) keeps this from happening.

Bruce
Joe P
Original Author
4 years ago
thanks Bruce, Im just having trouble working out how to. do the p trap with the studor and still have it exit the floor and not the rear of the cabinet.

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