my unit goes thur my furnace in the basement. there is no pvc pipe, but i have a drain to a 110v bilge pump the float got stuck last year because of dirt, thankfully my son sleeps there and saw the water leaking on the floor before it was to bad!! cleaned all and was good to go
so far (knock on wood) it has been running quite and keeping things cooler then ever now that i cleaned it!!
again thanks to this thread!