FYI, these 100qt Igloo marine coolers are on sale at Canadian tire for $80 starting tomorrow.
http://www.canadiantire.ca/en/pdp/sports-rec/camping/coolers/hard-coolers/igloo-marine-ultra-cooler-100-qt-0853475p.html#.Vd81-Zfl9Is (http://www.canadiantire.ca/en/pdp/sports-rec/camping/coolers/hard-coolers/igloo-marine-ultra-cooler-100-qt-0853475p.html#.Vd81-Zfl9Is)
They would make a great mashtun for anyone making large batches.
I can fit about 27lbs grains in a 10gal (40qt) cylinder mashtun if mashed tick, this could mash about 67.5lbs of grains at the same thickness. :frazzled: