I agree with RM-MN, that's a lot of strike water. For example I'm planning tomorrows brew and it's 1.055 OG. I'll use 11 lbs. of grain and 7.4 gal of water. Will end up with 5.5 gal in the fermenter. .5 gal grain absorption, 1 gal boil off, .4 gal kettle loss.