Ask Experts Questions for FREE Help !
Ask
    TRUMP06's Avatar
    TRUMP06 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 18, 2009, 06:01 PM
    Kitchen sink venting
    I am adding a new kitchen with a sink drain that will run 25' to tie into the old system. The system is vented with a 4" stack through the roof. Do I need to add vent where the new sink begins?
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Sep 19, 2009, 05:14 AM
    Do I need to add vent where the new sink begins?
    Not where the sink begins but five foot downstream from the trap you will lay a sanitary tee on its back and revent back to the 4"stack or run it out the roof.
    If local codes allow you might just save yourself the hassle of piping a vent and install a AAV, (Air Admittance Vent) just downstream from the trap in the cabinet.
    Good luck, Tom
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Kitchen Sink Won't Drain - Venting Problems. [ 5 Answers ]

Greetings. I am having drainage problems in my kitchen sink. We just purchased this home, it is just around 100 years old. The kitchen sink does not drain, or technically, it drains extremely slowly (20 hours or so). The main stack is ancient iron pipe: see this image:...

Venting kitchen sink under middle bay window. [ 1 Answers ]

Hey all. We have a big kitchen in the house we are building. We know we have to put in a vent for the kitchen sink but are unsure of how to go about it since the kitchen sink is under the middle window of a three section bay window. Anyone have any suggestions, perhaps very layman termed...

Relocating Sink Drain/Vent to Dedicated Stack Serving Kitchen Sink & Dishwasher [ 3 Answers ]

I am relocating an upstairs vanity sink from one wall to another (also going from single to double bowl). Rather than relocate the drain and vent pipe, I am hoping that I can tie into a 1-1/2" copper vent pipe that is located right behind the vanities intended location. The copper vent pipe is from...

Venting Kitchen sink island [ 3 Answers ]

Hi, I have a kitchen sink in an island remodel we are doing. Do I need to vent this? If so , How? Thanks for all the help.

Venting kitchen sink [ 2 Answers ]

I recently moved into a basement apartment of a private residence. The kithen sink had been put in without a vent. It is just direct piped out the house. My question is can I install a vent under the sink without having to tie into the existing vent for the other plumbing as this would be...

View more questions Search