My existing soil pipe drops down the gable end wall and through the roof of the single storey attached garage. The drain then runs to under the garage slab into a chamber on the patio. I'm planning an extension and will be rebuilding the garage and converting the back third of it into a dining room.
I'm want to move the waste stack from the gable to the rear wall. This is allow me to move the pipe the other side of the footings.
This will mean that the existing toilet waste pipe will need to be routed along the garage wall and then under a suspended floor before emerging out the house at the rear and into the new stack.
What is an appropriate amount of fall for a soil pipe? Just need to know there's enough clearance under the suspended floor.
Also, is there a minimum height off the floor that a soil pipe has to be when it connects into the external stack? Normally they're at first floor level, but mine won't be.
See pic.
Its the fall between B and C that is of concern. I can set the angle of A to B at any angle because its just running horizontally along an internal garage wall.
I'm want to move the waste stack from the gable to the rear wall. This is allow me to move the pipe the other side of the footings.
This will mean that the existing toilet waste pipe will need to be routed along the garage wall and then under a suspended floor before emerging out the house at the rear and into the new stack.
What is an appropriate amount of fall for a soil pipe? Just need to know there's enough clearance under the suspended floor.
Also, is there a minimum height off the floor that a soil pipe has to be when it connects into the external stack? Normally they're at first floor level, but mine won't be.
See pic.
Its the fall between B and C that is of concern. I can set the angle of A to B at any angle because its just running horizontally along an internal garage wall.
