P-1202.2 Discharge of Indirect Waste

Indirect waste pipes shall discharge into and above the flood level of a trapped open sink or approved receptacle, properly supplied with water, which shall be vented where required by this code and which shall be located in an accessible ventilated place. An air gap shall exist between the outlet end of the waste pipe and the flood-level rim of the receiving sink or approved receptacle. The air gap in each instance shall be at least twice the diameter of the indirect waste pipe. If the indirect waste has sufficient year-round flow to maintain the trap seal, the sink or receptacle need not be supplied with water. The area of the receptor drain line shall be equal to or greater than the total area of all lines discharging into it. The size of the receptor drain line shall be a minimum of 2- inches and the receptor shall be of such size as to prevent overflowing of the receptor, but in no case shall it be less than 2".

Figure P-1202.2