Thanks guys. I may purchase the KFS Ultimate Bait Tank System. It's smaller than I'm used to using (this one is 4.7 gal capacity, made from a 15lb Vittles Vault container) but I don't have much room so this might have to work. It's sweet. Yes, I could do it myself with parts, but with time I am not sure how much money I would save.I just hope I can keep a pack of macs alive in there for 4-5 hours.