Upflush exhaust question

Old 11-19-05, 02:05 PM
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Upflush exhaust question

Finishing my basement bathroom...had my builder stub out a 1 1/2" vent pipe to the attic for my bathroom fan....Decided to install an upflush system that has a 3" vent pipe...My question is can I tie both (the fan exhaust and this 3" vent pipe) into this 1 1/2" vent sleeve I had the builder install or does the upflow need it's own sleeve?
Old 11-20-05, 06:28 AM
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Location: Rochester, Minnesota
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I am lost here..

The 1 1/2" pipe you had the builder put in is PVC for sewer line?

Almost all exhuast fan needs 4" duct to vent outside.

the 3" pipe you said have is for main stack for sewer?

You DO NOT tie exhaust fan with the sewer line.. They must be on it's own.

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