Heck—no one's opened a can of worms at E-C.net for at least an hour, so here goes...
1) Ever notice that a significant number of manufacturer-furnished weep holes in 3R enclosures are partially or completely plugged by paint?
2) Weep holes have their place in conditions of falling water. Where it’s “hose-directed,” this may often be a misapplication, but that gets into NEMA 4/4X territory.
3} Square D makes an extra-decent {XOP} disconnect switch with a NEMA 12/3 enclosure rating. [This excludes any of that idiotic, dim-witted “12K” crap. That idea’s right up there with ashtrys on motorcycles.] Anyways, their instructions for use as type 3 are/were to drill a couple of (specific-sized) holes in the enclosure bottom plate.
