We've been working on out MT a little lately. We added a sparge arm (I'll try and get some pics up) for simplicity and convenience. We batch sparge so its not truly needed at this time.
What is needed is a way to stir the mash without opening the cooler (coleman xtreame 70qt) and letting all the heat out every so often. I was thinking about putting probably 2 of these through the lid of the cooler and added a hand crank to them so we could stir without opening the lid.
What do you think? I am worried about the material being in contact with the mash during the whole process. I was thinking I might be able to find something similar in stainless.
Here is the link to the one i found.