skt
New Member
We are trying to replace a 48" tub with a full size (5") tub in a 1970 mobile home. To accomplish this we also have to move the toilet over 8" from it's current location. I have removed the wall hung cabinet above the current toilet location, as well as the towel cabinet which was 12" wide and floor to ceiling. I cannot move the furnace. There is one lav, a tub/shower combo, and water closet. There are two vents, one serves the lav and the tub/shower combo, the other serves the water closet and I think the kitchen sink, which makes me queasy, to say the least. Obviously someone has had their way with this plumbing, because there is NO WAY any inspector would have approved this as currently routed. There is a washing machine waste line that is 25' long, that is the last drain to empty into the soil line, and it has no vent whatsoever. The washing machine drain will be removed completely from the line for the time being, so for now it is out of the equation. The lav and tub/shower are vented as follows: the lav has a dry vent to the roof, and the tub/shower is tied into that waste line and the vent is tied into that vent above the lav. The waste line for those two units runs horizontally through the floor and ties into the soil stack at the same place as the kitchen sink and the toilet and is a mess. See the attached picture.
What I want to know is this: I have attached a drawing of what I propose to do. The tub/shower and lav will remain vented together and joined to the same waste line as they are currently. After moving the toilet I will vent it to the 2" vent that currently runs through the wall and up through the roof. Above that connection I will tie in the tub/shower and lav drain, and above that connection I will tie in the kitchen sink drain with it's vent tied in to the 2" vent above everything else. The red portion of the drawing is what I am most unsure of. I have no way to reroute the vents through the roof, and I am not a plumber, obviously. Any advice would be greatly appreciated. I have approximately 24" from the bottom of the closet flange to the gravel under the trailer to make these connections, and approximately 6' horizontally, then the soil line turns downward and I have no room to work with.
(I stole this drawing from somewhere else on this forum and reworked it to suit what I needed, so to whoever owns this work, I am sorry and also grateful for the beginning.)
If you're looking at the drawing, the drain from the kitchen sink is actually behind the toilet, but if I were to show it that way all you would see is a straight line, so imagine it is turned 45° clockwise.
The tub/shower and lav connection would be turned 45° counterclockwise.
What I want to know is this: I have attached a drawing of what I propose to do. The tub/shower and lav will remain vented together and joined to the same waste line as they are currently. After moving the toilet I will vent it to the 2" vent that currently runs through the wall and up through the roof. Above that connection I will tie in the tub/shower and lav drain, and above that connection I will tie in the kitchen sink drain with it's vent tied in to the 2" vent above everything else. The red portion of the drawing is what I am most unsure of. I have no way to reroute the vents through the roof, and I am not a plumber, obviously. Any advice would be greatly appreciated. I have approximately 24" from the bottom of the closet flange to the gravel under the trailer to make these connections, and approximately 6' horizontally, then the soil line turns downward and I have no room to work with.
(I stole this drawing from somewhere else on this forum and reworked it to suit what I needed, so to whoever owns this work, I am sorry and also grateful for the beginning.)
If you're looking at the drawing, the drain from the kitchen sink is actually behind the toilet, but if I were to show it that way all you would see is a straight line, so imagine it is turned 45° clockwise.
The tub/shower and lav connection would be turned 45° counterclockwise.
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