Boring subject but I can't find any guidelines (if they exist) regarding the usage of a H20trap/filter for our high pressure hoses; some of the vents are priced with them, some are not.

Did have a hospital in this city flood their vents when a plumber flooded the medical air line with water but in retrospect the small h20 traps that come with the vents would have probably done nada

Any comments?

The only guideline that I know about is the one about filters (air, not water traps), that the OPIQ asks us to put on the inspi and expi lines, on the vent.

Hope this helps.