Section 57

The level of the point of discharge of the hot or cold water to a fixed bath, lavatory basin or sink shall be not less than one and one-half inches above the centre of the overflow, or, if there is no overflow, of the top edge of the bath, basin or sink:

Provided that this regulation shall not apply to any bidet, sitzbaths, slop or sluicing sink, or similar apparatus, if every pipe conveying hot or cold water to such apparatus is connected to –