djsoot
New Member
I am in California and am considering moving a toilet from one side of bathroom to the other.
The 3" toilet drain line branches off the 3" main drain trunk; it is dedicated to toilet only.
The current drain line has a vent that is 16.5" downstream of the toilet drain.
When moved to the other side of the room the toilet will be 6'-9" from the vent.
I am aware that UPC says vents can be no more than 6' from toilet.
The questions I have
1. @ 6'-9" will there be any potential negative mechanical affects to the toilet, operation, draining (e.g.
Example: gurgling, not flushing, vacuum, etc.
2. If I were to put in a 1.5" vent in this 6'-9" area (1 ft from toilet); would this alleviate any potential side effects; would 1.5" introduce any? The 1.5" vent would be vented to the roof.
Any advice you can share, I am kind of mixed as I plan on staying with this house for quite some time and would like to save myself the time/hassle on permitting and venting if there are no consequences beyond the 6' range.
I am hoping I could do a straight drain extension without venting modification given we are talking 9" inches here. But want to get others take on this, particularily if serious mechanical consequences I will be cursing myself out for later.
Thanks for any advice/expertise you can share
A - 3" Main Drain Trunk
B - 2" Vent thru roof
C - Existing 3" Toilet Drain @ 16.5" from B
D - New 3" Toilet Drain @ 6' - 9" from B
The 3" toilet drain line branches off the 3" main drain trunk; it is dedicated to toilet only.
The current drain line has a vent that is 16.5" downstream of the toilet drain.
When moved to the other side of the room the toilet will be 6'-9" from the vent.
I am aware that UPC says vents can be no more than 6' from toilet.
The questions I have
1. @ 6'-9" will there be any potential negative mechanical affects to the toilet, operation, draining (e.g.
Example: gurgling, not flushing, vacuum, etc.
2. If I were to put in a 1.5" vent in this 6'-9" area (1 ft from toilet); would this alleviate any potential side effects; would 1.5" introduce any? The 1.5" vent would be vented to the roof.
Any advice you can share, I am kind of mixed as I plan on staying with this house for quite some time and would like to save myself the time/hassle on permitting and venting if there are no consequences beyond the 6' range.
I am hoping I could do a straight drain extension without venting modification given we are talking 9" inches here. But want to get others take on this, particularily if serious mechanical consequences I will be cursing myself out for later.
Thanks for any advice/expertise you can share
A - 3" Main Drain Trunk
B - 2" Vent thru roof
C - Existing 3" Toilet Drain @ 16.5" from B
D - New 3" Toilet Drain @ 6' - 9" from B
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