soil-pipe extended above roof, but without ventilation at its foot.
Between the soil-pipe and the fixtures a trap must be provided with a water-seal of about an inch.
The bottom of the pan is attached to the soil-pipe which discharges into the drain.
soil-pipe fittings can be had from stock almost to suit the conditions.
A pin-hole or minute sand-crack in the soil-pipe, or a very slight defect in a joint, is far more dangerous than a trap.
The nearer to the soil-pipe that the fixtures can be arranged the better.
Two-inch tin vent from bend of soil-pipe carried with various angles into cold chimney flue.
This soil-pipe weighs about ten pounds per foot and is almost always four inches inside diameter.
What is said above concerning the ventilation of the soil-pipe from end to end relates to the interest of the private owner.
The only kind to use are short-hopper closets with a trap that opens into the soil-pipe above the floor.