Archives: Library Snippets

  • Solder

    —

    Solder used for plumbing shall comply with the requirements of C.A.S. No H3, Soft solders

  • Asphaltic Compound

    —

    Asphaltic compound used for joints shall not- a) be brittle at normal temperature; nor b) soften sufficiently to destroy the effectiveness of the joint when subjected to a temperature of 70°C; nor c) be soluble in any of the wastes carried by the sewerage system.

  • Jointing

    —

    Jointing of sewers and fittings shall be made- a) with materials approved for use with the particular material of which the sewers and fittings are made; and b) in such a manner as- (i) to prevent leakage from the joint; and (ii) where necessary, to allow some moment of the joint.

  • Waste Overflow

    —

    Where any sanitary fitting is provided with an overflow, such overflow shall, except in the case of cisterns and storage-tans, be connected close to its discharge either into the open air or to the inlets of the associated trap, and shall be so arranged that it is readily accessible for cleaning.

  • 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…

  • Threaded Fittings

    —

    All threaded fittings shall be of copper, brass, malleable cast iron or galvanized mild steel, and shall be of recessed pattern with smooth interior waterways and with threads tapped out of solid material.

  • Prohibited Fittings

    —

    (1) No single-or double-tee or tapped-tee branch or any fitting or connexion which offers abnormal obstruction to flow through a sewer-pipe, waste-pipe or soil-pipe shall be used. (2) The drilling and tapping of any pipe used in the sewerage system after its installation is prohibited. (3) Dead ends in waste-pipes or soil-pipes shall not be…

  • Resealing-Traps

    —

    All resealing-traps shall be of a type approved by the local authority.

  • Trapped Gullies

    —

    Trapped gullies, if of earthenware, shall comply with C.A.S. No. A16, and shall be covered with an approved grating, the bars of which shall be not more than 10 millimetres apart.

  • Grease-Traps

    —

    Grease-traps, if of earthenware, shall comply with C.A.S. No. A16. TABLE III