I've used this new system for my last two batches of beer (I'll post the recipes soon: Whiskey Barrel Porter and 15 mile IPA). It works great. A friend of mine sent me a link (which I can't seem to find...) to a blogger who uses a picnic cooler mash-tun that utilizes the stainless steel mesh from a flexible waterline as the filter which I thought was a great idea. That post led me to make this contraption which I've since seen in the book Radical Brewing. I cut the slots in the 1/2 copper pipe with my band saw (wear gloves!!). Only the goose-neck connector is soldered; I left the rest of the connections free for modifications and cleaning. I was using the "Zapap" lauter-tun from Papazian's JofHB. This method eliminates a transfer step! If you have a mash-tun/brew kettle with a valve, I highly recommend a system like this.