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    skalinski's Avatar
    skalinski Posts: 2, Reputation: 1
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    #1

    Aug 1, 2009, 11:26 AM
    Venting a interior bathroom
    My bath has a non vented fan needs to be changed but the bath is in the interior of a condo I do have access to a washer drain vent that is shared with 3 other condos.can I dothis without getting into trouble overflow is not an issue since I am on the top floor of the unit
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Aug 1, 2009, 11:31 AM
    Hi Skalinski:

    You cannot connect a ventilation/fan vent into a plumbing vent for any reason! It would be connecting an open vent to open plumbing (no trap) so sewer gasses would enter into your home... not healthy!

    If you are on the top floor you should be able to run the fan vent into the attic space and over to the eaves and install an eaves vent there. Let me know all your options...

    MARK
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Aug 1, 2009, 11:41 AM
    Quote Originally Posted by skalinski View Post
    my bath has a non vented fan needs to be changed but the bath is in the interior of a condo i do have access to a washer drain vent that is shared with 3 other condos.can i dothis without getting into trouble overflow is not an issue since i am on the top floor of the unit
    The vent's a no-no. Forget it! You're on the upper floor? Exhaust the fan into the attic. Good luck, Tom
    hkstroud's Avatar
    hkstroud Posts: 11,929, Reputation: 899
    Home Improvement & Construction Expert
    		  
    #4

    Aug 1, 2009, 12:55 PM

    You are in a condo, right? Your property line is the ceiling, that attic space is mine. Stay the hell out of it unless you have my written permission.
    skalinski's Avatar
    skalinski Posts: 2, Reputation: 1
    New Member
    		  
    #5

    Aug 1, 2009, 03:16 PM
    Quote Originally Posted by massplumber2008 View Post
    Hi Skalinski:

    You cannot connect a ventilation/fan vent into a plumbing vent for any reason!! It would be connecting an open vent to open plumbing (no trap) so sewer gasses would enter into your home...not healthy!!

    If you are on the top floor you should be able to run the fan vent into the attic space and over to the eaves and install an eaves vent there. Let me know all your options...

    MARK
    Well there is no attic I have concrete flooring and concrete ceiling with cinderblock walls between the units
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #6

    Aug 1, 2009, 03:37 PM
    there is no attic I have concrete flooring and concrete ceiling with cinderblock walls between the units
    OK! I guess the attic's out. Have you questioned your neighbors and asked the condo board what to do? Just a thought. Tom
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #7

    Aug 1, 2009, 04:04 PM
    Harold and Tom are correct here... you can't just go punching through concrete or much of anything else without permission and discussion. However, all codes will tell you that if your bathroom is on an interior space (as you mentioned) it MUST have a properly ventilated fan to reduce the chances of mold development... ;)

    Talk to the other condo members and see what they think. Fact is that you really need to find a reasonable way to make this happen, up to and including core drilling the concrete ceiling if need be... ;)

    Let us know how you make out... O.K.

    MARK
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