Hi there, first of all, I need to say Brewer's Friend is very interesting: well done, well explained and a pleasure to work with. My group of tinkerers and me are proud owners of a Grainfather and I would like to ask if some of you, or the author, has a correct configuration for its use. Data we already have are: 30 liters maximum space 3 liters/hour boiling evaporation 1,5 liters are lost in the bottom (almost zero if you squeeze hop bags and sieve the last part into the fermenter. Does someone have more information regarding Grainfather? Thank you in advance Cristian P.S. I am Italian, not English language native, so please forgive writing errors and ask me if something is not clearly exposed.