Woo Hoo! just tested my new 70 quart Coleman Extreme mash tun. I ended up going super cheap and easy as the money never lasts as long as I would hope. So I took a 3 foot length of 5/8 OD plastic tubing and, after heating it up a little in hot water, forced it through the existing drain. Fits like it's made for it! Hose clamp the 1 inch hot water heater SS braid to the inside bit and we are good to go. I just stick the outside end of the tube in the handle to hold it above the liquid level and viola. maybe someday I will get a valve or something. Just in time to mash 25 lbs of 2 row for my maple barley wine!