REDWOOD COAST BREWERS ASSOCIATION
Jim (left) has a 1/2 barrel extract system that could be converted to an all grain system by adding a mash tun and hot liquor tank. John (right) is another brew club member who is currently without a system, so he thought he would get on the web page this way.
Jim's system has a copper tube with holes drilled in the bottom in the boil kettle to filter out whole hops and trub
If you ever want to build a no weld tank take a look at the photo below. That is a fiber washer (available at any hardware store) behind a standard 1/2" ball valve. On the inside of the keg the ball valve screws into a compression fitting with a stainless washer (see above picture). The fiber washer is superior to any weldless kit you can buy because they all come with a flimsy "O" ring that will blow out the side if you put any torque on it. All you need is an angle grinder with a thin blade to take the top of the keg and a drill bit the big enough for the compression fitting threads to go through.