Steve20A
New Member
Hello. Steve20A here with a general question for the experts.
I am building a new house. The houses previously built by this contractor have waste lines running around the perimeter of the unfinished basement, collecting waste from the kitchen and baths and eventually going to the sewer exit pipe. They use an ejector pump for moving waste from the basement level bathroom.
My house will be at a high enough elevation so that the sewer exit line will be below the slab. I will not need an ejector pump. The current plan for the basement bathroom is to have it drain into a pipe under (in) the slab. There is an I-beam in the basement that bisects the house (more or less). It prevents any waste pipe from being run near the ceiling, where it would be out of the way - it forces the pipe to be much lower (to clear the beam) and on the wall (because you can't have a pipe suspended in the middle of the room) and it therefore intrudes into the wall space where I would put cabinets.
My suggestion was to have a larger sewer line run under (in) the slab and have the left side of the house drain into it on the left side of the I-beam and the right side of the house drain into it on the right side of the I-beam, eliminating the need for a perimeter pipe. The basement bathroom could use that one pipe, as well.
The contractor says his plumber doesn't like the idea. A larger pipe under the slab might break more easily; two entrances into the sewer pipe are "not standard" for him; some other, lesser objections. He suggests I just build a false wall to cover the pipes.
My questions:
1. Any reason why a larger pipe under (in) the slab would not be a good idea?
2. Any reason why more than one entry point into this pipe is a bad idea?
3. Would a pipe generally go under the slab or in the slab? If under, would it be protected in some way (concrete channel of some sort?)
Many thanks in advance. I would just like to be more educated before I speak with the contractor again.
Steve20A
I am building a new house. The houses previously built by this contractor have waste lines running around the perimeter of the unfinished basement, collecting waste from the kitchen and baths and eventually going to the sewer exit pipe. They use an ejector pump for moving waste from the basement level bathroom.
My house will be at a high enough elevation so that the sewer exit line will be below the slab. I will not need an ejector pump. The current plan for the basement bathroom is to have it drain into a pipe under (in) the slab. There is an I-beam in the basement that bisects the house (more or less). It prevents any waste pipe from being run near the ceiling, where it would be out of the way - it forces the pipe to be much lower (to clear the beam) and on the wall (because you can't have a pipe suspended in the middle of the room) and it therefore intrudes into the wall space where I would put cabinets.
My suggestion was to have a larger sewer line run under (in) the slab and have the left side of the house drain into it on the left side of the I-beam and the right side of the house drain into it on the right side of the I-beam, eliminating the need for a perimeter pipe. The basement bathroom could use that one pipe, as well.
The contractor says his plumber doesn't like the idea. A larger pipe under the slab might break more easily; two entrances into the sewer pipe are "not standard" for him; some other, lesser objections. He suggests I just build a false wall to cover the pipes.
My questions:
1. Any reason why a larger pipe under (in) the slab would not be a good idea?
2. Any reason why more than one entry point into this pipe is a bad idea?
3. Would a pipe generally go under the slab or in the slab? If under, would it be protected in some way (concrete channel of some sort?)
Many thanks in advance. I would just like to be more educated before I speak with the contractor again.
Steve20A
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