What are people's experience with using 10 gallon Rubbermaid water coolers? What is the maximun capacity for those coolers? I have figured that about 24lb of grain with a ratio of 1.33 qt/lb is about the max, but some discussion I have read seem to indicate that more can be used (with a lower water to grain ratio, I would assume). I've never maxed it out, but I plan on doing so soon.
I just mashed 24# in my 10 gal rubbermaid cooler at 1.25 qts/lb and it was pretty darn full. Worked great though!