i am updating the bathroom and the main waste line is getting redone also. house was built in 1949 so the plumbing has a lot to be desired. it use to have a leech field and now there is a sewer hookup. the main waste exits at the top of the foundation wall, not leaving me much room to work with. the total length or the run is 12 feet. what i need to know is, first am i using the correct fitting for the fixtures and second, having the vent at that location. the room is very small with 3 of the walls being made from cinder block. restudding for space for plumbing is not there. take a look at my crude drawing and thanks for any help.
trying to update
- Thread starter macmic87
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Krow
Plumber
All of the fixtures that you are planning on need to be vented seperately if you are running the single main line. There are ways to combine certain drains that can be wet vented, reducing the amount of piping and fittings to a minimum.
The fittings seem to be ok . You just need to revise your drawing slightly to show the proper vents. Specifically, your toilet to start with
The fittings seem to be ok . You just need to revise your drawing slightly to show the proper vents. Specifically, your toilet to start with
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Krow
Plumber
based on your sketch, I made a "side view.
In this pic, the basin and bathtub are wet venting the toilet and the utility sink is being dry vented. The 3" vent goes out through the roof. The vent is primarily used to stop the water from the fixture P-trap from being syphoned out. You need the water in the trap to keep sewer gases from coming into your home.
The Clean out is not required inmost places, but a good option to have.
The sizing of the wet vents and dry vents are also critical. Each state/province will have their own sizing specs for a certain fixture, so I don't want to mislead you with sizes if I don't know what area you are in.
This is a basic simple layout , but there are many more ways to run the drains and vents
In theory, the 3" vent can actually branch off the blue Clean out line and still be legal
In this pic, the basin and bathtub are wet venting the toilet and the utility sink is being dry vented. The 3" vent goes out through the roof. The vent is primarily used to stop the water from the fixture P-trap from being syphoned out. You need the water in the trap to keep sewer gases from coming into your home.
The Clean out is not required inmost places, but a good option to have.
The sizing of the wet vents and dry vents are also critical. Each state/province will have their own sizing specs for a certain fixture, so I don't want to mislead you with sizes if I don't know what area you are in.
This is a basic simple layout , but there are many more ways to run the drains and vents
In theory, the 3" vent can actually branch off the blue Clean out line and still be legal
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