QSTN - what materials are you using to “trap” your air handling equipment? This one below has a mix of materials. Lots get done in PVC for its ease/cost. I have done some in 2” Galvanized Sch40 iron pipe for some very large units. The water filling the trap creates a barrier from the ambient to the inside of the air unit. This allows the pressure within the unit to be contained, promoting the drainage of water from the unit. Happy trapping! 💦

Posted by Julian Finbow at 2025-05-22 16:17:55 UTC