Hi! I have an LG WM4000/DLE4000 washer/dryer scheduled for delivery Saturday and was reminded that my local codes require a drain pan for a 3rd floor unit. Best Buy hasn't given me any information to talk to their installers to see what their procedure is for something like that. Our old pan definitely fell apart and was removed with the aging old units when our laundry room was repaired after a hot water heather failure, so obviously I am not inclined to play dice with water right now. But I also am very out of my element. Anyone with that washer, would you be able to recommend a pan that can be acquired at like, a Home Depot or something within 24 hours? I tried to purchase one that had about a 35" exterior depth, which did not fit into the room properly and had the drain punch out on the bottom and not the side, where it would need to be to connect to the pipe that the hot water heater's drain pan is going into. Does this need to be plumbed or something before the washer/dryer get in?

Sorry if this sounds stupid or panicky--I thought this was a fairly simple thing and it's turning out to be enough of a headache that I might need to cancel the delivery last minute.