s-trap

Updated: June 22, 2025

The outlet may be at the side connected with a simple earthenware s-trap with a ventilating outlet at the top, from which a pipe may be taken just through the wall. From the S-trap I prefer to take the soil pipe immediately through the wall, and connect with a strong 4 in. iron pipe, carefully jointed, watertight, and continued of the same size to above the tops of all windows.

Various - Scientific American Supplement, No. 384, May 12, 1883