As for me, I also have a dedicated coolant drain pan, but I have no dedicated coolant funnels. The I dump it into a mop bucket. It already has a built in funnel. It's not the best, but doesn't work too badly if you pour slowly. I only dump a gallon or so into the mop bucket at a time so that it's easier to control. I don't reuse what sits at the bottom. That way, most of the bigger chunks will stay in the bucket. I'll top off the radiator with new antifreeze after that.