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amakarevic 08-11-2007 12:51 AM

loop vent or auto-vent
building a basement bathroom. the position of the sink is too far (>8 ft for a 2 in pipe) from the stack vent. do not feel like drilling for another stack.

my options are to either install a loop vent or have an auto vent device. i am inclined towards a loop vent. is this adequate ? if so, how long should be the loop side (given that it is a square) ? given that it is a 1.5 in drain.


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Ron The Plumber 08-13-2007 09:01 AM

Use a loop vent or studor vent if your allowed in your state. Not sure what your asking about loop side.

amakarevic 08-13-2007 11:36 AM


my question was simply how big should the loop be, e.g. 2 ft x 2 ft, 3 x 3, etc. ?


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Ron The Plumber 08-13-2007 08:24 PM

We stub up into the cabinet a min of 11" on center, as long as you can create the loop with no problems.

donshar 08-21-2007 12:28 PM

Loop vent
Hi, I'm putting a double sink in the center isle of our new kitchen and will need a loop vent, I think. How is it constructed since I've never built one before? -Don

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