Section 27 in Haryana Municipal Drainage and Sanitation Bye-laws, 1977
27. Water closet.
(1)Every water closet pan composition of which should be as per specifications laid down by Indian Standard Institute, shall have an efficient syphon trap with a minimum water seal of 75 mm beneath so that sufficient water seal, between the pan and any drain or soil pipe, is maintained. D trap shall not be fixed in connection with the water [closet] [Substituted for the words 'closets' by Haryana Notification No. S.O. 120/H.A. 24/1973/Sections 200 and 214/2007. dated 11.12.2007.].(2)No person shall build a water closet in such a position or manner as to be directly over or directly under any room or part of a building other than a privy or water closet or passage or a bathing place or bath room or terrace:Provided that the committee may dispense with this requirement if they are satisfied that the flooring beneath such privy water closet is sufficiently impervious by reason of its material composition or thickness.(3)No person shall build a privy in such a position or any manners as to be within distance of 30 metres from any well, or stream of water, where it is likely to be used for human consumption or domestic purposes.(4)The minimum floor area of water closet shall be 1.25 square metres, the smallest side being 1 metre.(5)No part of the water closet shall be directly connected with water supply distributing pipe. For flushing and cleaning of the pan, flushing cistern with suitable ball cock and of not less than 12 litres capacity shall be provided.(6)Except in the case of 'Low Level' flushing cistern a head of at least 2 metres measured from the bottom of the cistern to the point of discharge of the flush pipe shall be provided.(7)All flushing system shall be of a mosquito proof pattern.(8)No self acting or automatic flushing apparatus shall be constructed or fixed except with the prior permission of the committee.(9)The capacity of every flushing storage tank shall be at the scale of 270 litres for one water closet connected to the tank and 180 litres for each additional seat in the same premises.(10)The flushing pipe connecting the cistern with the pan, basin through or other receptacle, with which the water closet or latrine may be provided, shall be of sound material and all connections should be water tight.(11)Where the water closet discharges into a soil pipe which also receives the discharge from another water closet i.e. where there is another water closets pan above the other, the trap of the water closet shall be ventilated by a pipe called "antisyphonage pipe" which shall :-(a)have an internal diameter of not less than 50 mm. ;(b)be connected with the arm of the soil pipe at a point not less than 7.5 cm. and not more than 30 cm. 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 flow ; and(c)either have an open and as high as the top of soil pipe or be carried into a soil pipe at a point not less than 1.5 metres above the highest connection of the soil pipe.(12)The walls of every Indian type water closet or [water seal latrine] [Substituted for the words 'service latrine' vide Notification, dated 7.4.1995.] upto a height of not less than one metre above the platform, shall be constructed of well burnt bricks, plastered with cement mortar 1 : 3 or of other hard smooth impervious material and corners rounded.
