I am going to do my first all grain (10 gal centennial blond) this weekend. I am using beersmith and dont know what type of mash to use,single infusion,double infusion,Temp mash,ect. then their is full body, medium body, ect. I will be using my rims system for the first time and will be whirlpooling the water the whole time. Also do you have the return water above the grainbed when constantly recirculating? I know, I built the cart before breaking the horse.