I've looked around and can't seem to find what I'm looking for after testing out my setup I'm boiling off 2 gal/hr when boiling 6 gallons, and leaving behind 1/2 gallon when draining my boil kettle. My question is do i need to adjust the amount of grain for the recipe or just add more water. or will adding more water just lower the OG. If there is a link i missed please copy and paste a link and I'll read up on it. thanks.