The best part about this setup is that the fittings should be interchangeable with the 5 or 10 gallon Rubbermaids. Whenever I feel like upgrading, all I have to do is pull it apart and it should all fit right into a new cooler. Although, it's only about a $15 system, so I might just keep the small tun and have a separate large tun... but then again, I could use the second valve setup to put together a hot liquor tank. Oh, the possibilities!
Rawkstar320: Check out Deathbrewer's Partial Mash BiaB tutorial sticky. That's where I learned the basics of it. I've found that if I order my grains crushed and then, when I get them, throw them into a blender and give them just a little bit of a whizz I will end up with slightly higher efficiency (it's safe because in the bag you don't have to worry about stuck sparges). I figure I usually end up with 65-70% if I mash for an hour and let the bag rest in my separate sparge water for about 10 minutes, but you will find all of this discussed in the aforementioned thread. Good luck!
