Content Page: 28 Seals In Fitting-Traps

(1) Except in the case of resealing-traps, the maximum depth of water-seal in all fittings-traps shall be 100 millimetres. (2) For two-pipe system installations, the minimum depth of the water-seal in all fitting-traps shall be 40 millimetres for waste-water fittings and 50 millimetres for soil-water fittings. (3) For one-pipe systems and single-stack systems, the minimum…