So I've got a 10 gallon batch of an amber all coming up. I do BIAB in my 15.5 gal keggle. The grain bill for this batch is 19 lbs. can I fit all that grain and the water I need for a no sparge BIAB in that keggle? If not, that ok. I'm willing to sparge for my preboil volume of 12 gal. If I can't fit all of the water and grain in there, what amount of water should I do, then how much water should I use to rinse the grains with? Thanks.