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  1. K

    My coleman 70 quart extreme copper mash tun

    The only problem I have had has been with the top piece of the sparge arm. It seems the 1/2" hose puts a little too much pressure on it and forces it out (disconnects) unless there is compression from the cooler's lid closing on top of it. The mash manifold on the bottom hasn't given me any...
  2. K

    My coleman 70 quart extreme copper mash tun

    I used the same weldless valve kit I used on my 10 gallon igloo.
  3. K

    My coleman 70 quart extreme copper mash tun

    Great Job, Tony. I wasn't concerned about losing wort with the raised elbow due to establishing a prime. Works just as good as my dip tube on my keggle. To increase the pressure further I also use a pump to vorlauf and collect my wort. I considered a T, but figured I could double the...
  4. K

    My coleman 70 quart extreme copper mash tun

    I used a dry erase marker to mark every half inch and a dremel to make my cuts. The dremel worked great. I made sure to hinge my palm on the copper pipe when making my cuts to make the slits as narrow as possible. I had copper dust all over the place and used eye and respiratory protection...
  5. K

    My coleman 70 quart extreme copper mash tun

    Yep, it would have messed up my spacing. I tried to stay true to Palmer's recommendation of 2-3 inches apart for pipe spacing and half that distance to the wall. I also wanted the pipe spacing to be an equal distance. Branching off the one pipe was the only way to keep the pipe spacing to a...
  6. K

    My coleman 70 quart extreme copper mash tun

    This is the mash tun build I just completed. I used the 70 quart extreme coleman cooler. I needed a bigger mash tun for bigger 10 gallon beers. I did not solder the parts for easy cleaning. My pipes are 2 1/2 inches apart and 1 1/2 inches from the wall. The slits are 1/2 inch apart that I...
  7. K

    Water chemistry is hard

    My water has chloramines in it. When using a RO system are campden tabs still necessary for reducing/ eliminating chloramines? When making salt additions what is the best way? 1. Force carb concentrated amount in a corny keg or 2. Add directly to mash, adjust sparge water with acid, then add...
  8. K

    Acetaldehyde rearing it's ugly head

    Unfortunately I believe I have acetaldehyde in my brew. 5/19/11- Brewed 10 gallon batch of pale ale, used a yeast starter on stir plate with two activator packs of 1056 in 3 liters of DME (3 cups of DME) OG 1.070 (I know it's too high for that style), but my efficiency is getting better...
  9. K

    Water chemistry is hard

    Thanks for all the info guys. I really appreciate it. When inputting the numbers into Bru'n, what do you input Barley Flaked as? (crystal, base, or roast) I will definitely go out and get a ph meter, preferably ATC. Would it be better to overshoot or undershoot mash ph? For instance with my...
  10. K

    Water chemistry is hard

    I need to raise mash ph.
  11. K

    Water chemistry is hard

    Any thoughts on how to fix this? I can't add any more baking soda or chalk cause I'll go over on my ranges.
  12. K

    Water chemistry is hard

    Enclosed is my spreadsheet from EZ calculator for my water profile. I will be brewing a stout mirroring Dublin water. My source water has a ph of 9.0. My mash ph is reading low according to the calculator, 5.18. How is this possible when my source water has such a high ph? Grain bill is...
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