My first post in this excellent forum! Lots of very helpful people in here.
I've read some of the other single to double lav conversion threads and I have a question. I'm working on a friends condo and unfortunately I was not able to get a photo of the rough plumbing to post, so attached is a rather terrible drawing made with good old Microsoft paint. Originally there was a single sink feeding that long 10' run to the drain and vent. Now the plan is to convert it to a double lav and rough in all the plumbing inside the wall.
Basically, I am wondering if the following drain set up shown with the black lines meets UPC in terms of venting. If not, would adding a secondary vent as drawn with the red lines solve the requirements? Also, is it an issue that the primary drain that both lavs would now feed is only 1 1/2" and not 2"? The distance between the stubouts is approximately 50" and obviously each sink will have it's own P-Trap. Any help that can be provided is appreciated. Thanks!
I've read some of the other single to double lav conversion threads and I have a question. I'm working on a friends condo and unfortunately I was not able to get a photo of the rough plumbing to post, so attached is a rather terrible drawing made with good old Microsoft paint. Originally there was a single sink feeding that long 10' run to the drain and vent. Now the plan is to convert it to a double lav and rough in all the plumbing inside the wall.
Basically, I am wondering if the following drain set up shown with the black lines meets UPC in terms of venting. If not, would adding a secondary vent as drawn with the red lines solve the requirements? Also, is it an issue that the primary drain that both lavs would now feed is only 1 1/2" and not 2"? The distance between the stubouts is approximately 50" and obviously each sink will have it's own P-Trap. Any help that can be provided is appreciated. Thanks!
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