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Old 08-28-2011, 07:16 PM   #1
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rough-in pipe spacing for bathroom sink


my book says keep 4" between the hot and cold pipes roughing in for a bathroom sink. however, i am inclined to leave more space, maybe even as much as twice that much, because there will be 1.5" PVC in between them and i don't wanna keep it to close to copper to avoid the danger of melting PVC when sweating the copper pipe.

so i was wondering if there are any other issues to keeping the hot and cold farther apart than what the book/code says for comfortable spacing and having more room to work with. i like to use MAPP gas, that thing burns real hot and i'm pretty sure i would melt PVC from just being close to it.

thanks


Last edited by amakarevic; 08-28-2011 at 07:17 PM. Reason: typo
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Old 08-29-2011, 01:40 PM   #2
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rough-in pipe spacing for bathroom sink


Could you not put a thermal barrier between where you are soldering and the pvc? Something to block the heat. Or could you put the copper lines in first and then run your pvc?

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Old 08-29-2011, 02:07 PM   #3
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rough-in pipe spacing for bathroom sink


for a regular lav we used to set the waterlines at 21 inches to center off of the floor and 4 inches to the right and left of center. the drain we centered on the sink at 19 inches to center off of the floor. pedestal sinks were different. is this a free standing sink or a drop in?
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Old 08-29-2011, 02:14 PM   #4
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rough-in pipe spacing for bathroom sink


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is this a free standing sink or a drop in?
i think it will be an undermount vanity
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Old 08-29-2011, 02:17 PM   #5
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rough-in pipe spacing for bathroom sink


the maybe drop the drain down to 18 inches. we always made them 19 so we didnt need an extension on the drain.
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Old 08-29-2011, 02:30 PM   #6
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rough-in pipe spacing for bathroom sink


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...4 inches to the right and left of center...
does that means 8 inches apart ?
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Old 08-29-2011, 02:36 PM   #7
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rough-in pipe spacing for bathroom sink


for the waterlines 8 inches apart. 4 inches to either side of center of the drain.

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