In an effort to reduce hot side aeration would filling my bk and mash tun from the bottoms be a bad idea? I use upsidedown keggles with tri clover center drains. Boil kettle I can't see any issues besides maybe the fill tube not getting steralized?? I can imagine the grain may float up on dough in, should be OK for the second sparge mash...?? Any comments before I change my plumbing and give it a whirl?