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    jay99's Avatar
    jay99 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Feb 24, 2008, 05:58 PM
    Venting the unvented drain system
    Is there a way to vent my unvented homes drain system without opening up walls
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Feb 24, 2008, 06:15 PM
    Next question is... do you have AAVs in you house? They look simliar to the pictures below... These may be the answer you are looking for... can install these without opening walls (usually).

    If not, you will need to find out if they are allowed in your town/city (call plumbing inspector and ask him). Get back to me with answer. PS --->> You posted this question twice... remove one to reduce missing each other in cross posts. Thanks.
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