If I have an RPZ backflow preventer with an air gap fitting, does that serve as the air gap and I can pipe the fitting to a trap and sewer or do I still need to have another air gap at the bottom to a drain?
If it doesn't serve as the air gap, what is the point of the air gap fitting?
Does anyone know of any reliability problems with pressure powered condensate pumps causing the springs to break or mechanisms to habitually jam up?
I am working on the design of a steam distribution and condensate return system. In the design, I would like to use gravity fed condensate tanks...
