FCAB Rules 58Chapter V · Drainage And Sanitary Installation. General

Section 58 · Water closets. Sections 43(2), 57(2)(m)

(1)

Every water closet pan shall have an efficient syphon trap with a minimum water seal of 75 millimetre beneath so that sufficient water seal between the pan and any drain or soil pipe is maintained.

(2)

No part of the water closet apparatus shall be directly connected with water supply distribution pipe for flushing and cleaning of the pan, a special closet cistern with suitable ball cock and of no less than 12 litres capacity shall be provided.

(3)

The capacity of every reserve tank shall be at the scale of 270 litres per water closet connected to the tank and 180 litres for each additional seat in the same premises.

(4)

No self-acting or automatic flushing apparatus shall be constructed or fixed except with prior permission of the Chief Administrator.

(5)

Where the water-closet discharges into a soil pipe which also receives the discharge from another water-closet the trap of the water-closet shall be ventilated by a pipe, which shall :-

(a)

have an internal diameter of not less than 50 millimetre;

(b)

be connected with the arm of the soil pipe at a point not less than 7.5 centimetre and not more than 30 centimetres from the highest part of the trap, on that side of water seal which is nearer to the soil pipe and in the direction of the flow; and

(c)

either have an open and as high as the top of the soil pipe or be carried into a soil pipe at a point not less than 2.0 metre above the highest connection to the soil pipe.

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