Thanks Craig, I don't mind at all, in fact I appreciate it very much. Over the winter, I needed a project so I built an electric HERMs system based on the design from the Electric Brewery. From my very limited knowledge (although I have read a ton of stuff) and please feel free to correct me if I am wrong, with BIAB you don't have any losses when you are mashing vs those who have a continuous sparging system. We need to compensate for water that is below the grain bed, in hoses, herms coil etc. On the flip side, you have to calculate pre-boil volume taking into consideration grain absorption, etc. I don't have to consider grain absorption, all I have to do is continually rinse the grain with my sparge water until I get the correct pre-boil volume. From there on, everything is the same, we both have trub losses, boil losses etc. For both of us, all the other calculations are correct such as total water, boil losses, trub loses etc with the exception of initial strike water in "Brew Steps" The calculator should take the grain bill x mash thickness + equipment losses and populate that amount for the initial strike water. For those who are batch sparging you don't have any equipment losses so the correct amount of water is displayed. For me (or anyone continuous sparging) before I dough-in I need the amount of water you are using plus the amount of water in my equipment that's not on the grain bed. So where brew steps tells you to your strike water volume is 3 gallons, that is all you need. For me, if brew steps tells me I need 3 gallons, I actually need to transfer 4.1 gallons