Section 102 in The Punjab Scheduled Roads and Controlled Areas Restriction of Unregulated Development Rules, 1965
102. Water closets [Sections 8(2) and 25(2)(f)].
(1)Every water closet pan shall have an efficient syphon trap with a minimum water seal of three inches beneath, so that sufficient water seal, between the pan and any drain or soil pipe is maintained. "D" trap shall not be fixed with water closets.(2)No part of the water closet apparatus shall be directly connected with water supply distributing pipe. For flushing and cleaning of the pan, a special closed cistern with suitable ball cock and of not less than three gallons capacity shall be provided.(3)The capacity of every reserve tank shall be at the scale of 75 gallons per water closet connected to the tank.(4)No self-acting or automatic flushing apparatus shall be constructed or fixed except with the prior permission of the Director.(5)Where the water closet discharges into a soil pipe which also receives the discharge from another water closet, the tap of the water closet shall be ventilated by a pipe, which shall -(a)have an internal diameter of not less than two inches;(b)be connected with the arm of the soil pipe at a point not less than three and not more than twelve inches from the highest part of the trap, on that side of the water seal which is nearer to the soil pipe and in the direction of the now; and(c)either have an open end as high as the top of the soil pipe or be carried into a soil pipe at a point not less than seven feet above highest connection to the soil pipe.
