And install a 1/2" valve? I've been all over town and can't find a decent tank fitting or bulkhead fitting Oh there's plenty if you're in Europe. And there's plent if you want to spend $200 or so on it with a 3" hole. How about a metal bucket that I can weld something too? 31 ga galvanized buckets slightly thicker than a beer can. Damn,all I want to do is drill a 3/4 hole in the side of bucket, install a 1/2" valve that doesn't leak at the sidewall (it can not leak) and meter how fast the liquid comes out of the bucket. How hard should that be?