I have always used partial grain when brewing. I am ready to move on to an all grain. I was reading a little, I understand the concept of false bottom, how is the liquid circulated over the grain to rinse? Do you hand pour the liquid over the grain over and over. Is it pumped? The procedure said till its clear. Well how can it be clear if your circulating it back over should'nt it be getting darker if anything. Do I really need a false bottom? Can an all grain be made well using sometype of kitchen strainer? Thanks for the help