So I am going to get two 10 gallon coolers. One for mashing and the other for hot water tank. I am also going to get a 15 gallon boil kettle to start doing all grain brewing. I am a little confused with setting up my equipment and mash profile. I am assuming with this setup up it is a single infusion setup up for my mash but I am not sure. So under my equipment profile it says that i will need a total of 7.23 gallons of water for a 5 gallon batch but under my mash profile it is saying that I need a mash in of 13.75qts. and a mash out of 8.8 quarts which does not equal 7.23 gallons of water needed. Come someone shed some light on this mash in mash out thing for me because I am obviously missing something. Thanks in advance.