Form guides
Air Gap
Registered air gap or break tank on QLD Form 9
Use this section for registered air gaps and break tanks. Refer to AS 2845.2 for the type of air gap.
Tick the overflow or registered air gap type, then enter ID number, orifice size, air gap sizing, total height, and overflow sizing. Use mm for Overflow Types 1 and 2, and mm² for Type 3.