sonicsmooth
New Member
Hi,
We are remodeling the basement in our 1908 Seattle house, and wish to remove the existing sewer pump, NOT install any more pumps(!) (eg saniflow, etc.), and NOT build the bathroom or toilet up on a platform. We have to reconnect the sewer at a lower point, but due to a bunch of restrictions, we don't get a full 6" below the new slab we intend to pour, at the location where the bathroom is.
So, How do we connect a toilet here? I've calculated that the top of the drain pipe just reaches the top of the new slab, if I take into account the 1/4" per foot slope requirements.
I'm thinking the best solution for toilets is a floor-mounted rear-drain toilet (rear discharge, etc.) These typically have a 4" rough-in above the floor, rather than requiring 6" clearance below the floor.
So I'm wondering:
* Is this the appropriate use of a rear-discharge toilet?
* Since I don't want to fur out the walls in the basement any more than I have to, am I allowed to go from the rear-discharge above-floor flange immediately to a 90-degree elbow to route the pipe under the slab? If not, what are the minimum radius requirements for pipe corners in drainage?
* Do I legally need a 4" pipe since this will be a below-slab pipe, in the basement?
* If rear-discharge is not the correct solution, is there a down-discharge (ie normal toilet) solution that allows the drainage pipe to be just *at* the level of the slab?
* What is the most affordable rear discharge toilet?
thanks
Michael
We are remodeling the basement in our 1908 Seattle house, and wish to remove the existing sewer pump, NOT install any more pumps(!) (eg saniflow, etc.), and NOT build the bathroom or toilet up on a platform. We have to reconnect the sewer at a lower point, but due to a bunch of restrictions, we don't get a full 6" below the new slab we intend to pour, at the location where the bathroom is.
So, How do we connect a toilet here? I've calculated that the top of the drain pipe just reaches the top of the new slab, if I take into account the 1/4" per foot slope requirements.
I'm thinking the best solution for toilets is a floor-mounted rear-drain toilet (rear discharge, etc.) These typically have a 4" rough-in above the floor, rather than requiring 6" clearance below the floor.
So I'm wondering:
* Is this the appropriate use of a rear-discharge toilet?
* Since I don't want to fur out the walls in the basement any more than I have to, am I allowed to go from the rear-discharge above-floor flange immediately to a 90-degree elbow to route the pipe under the slab? If not, what are the minimum radius requirements for pipe corners in drainage?
* Do I legally need a 4" pipe since this will be a below-slab pipe, in the basement?
* If rear-discharge is not the correct solution, is there a down-discharge (ie normal toilet) solution that allows the drainage pipe to be just *at* the level of the slab?
* What is the most affordable rear discharge toilet?
thanks
Michael