So I'm looking into making a simple immersion wort chiller as cheaply though as effectively as possible. The maximum boil size it would have to cool is 3 gallons. How many feet of tubing would i need to cool this boil size? I was thinking about 25 ft., but if it is plausible to go with less all the better. I found some tubing here, that seems like a fairly good deal based on what I've seen elsewhere, though how big of a difference is there between 1/4 in. and 3/8 in.?
http://www.acehardware.com/product/...tubing&parentPage=search&searchId=30167073703
http://www.acehardware.com/product/...tubing&parentPage=search&searchId=30167073703