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Old 11-15-2012, 08:51 AM   #1
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Bathroom sink drain min. drain size


Hello,

What would be the minimum abs drain line I could use for a basement bathroom sink? The run is approx 4-5' to the main stack. I am thinking 1-1/4". Thanks!

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Old 11-15-2012, 10:34 AM   #2
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Bathroom sink drain min. drain size


I believe that is correct.

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Old 11-15-2012, 10:48 AM   #3
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Bathroom sink drain min. drain size


that would be ok if it is 4' any longer requires larger pipe. Drainage has to be set for 1/4" pr foot.
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