Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > hole in cooler too big for oring seal?
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Old 04-04-2013, 04:53 PM   #11
jflongo
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I know on my 50 quart coleman extreme, the 1/2" coupler was quite smaller than the hole. I went ahead and bought a 3/4" coupler which fits quite snuggly in it.


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Old 04-04-2013, 04:55 PM   #12
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then reduce from 3/4 to 1/2" for the ball valve? or did you get a stainless 3/4 ball valve and reduce at the barb?
thanks


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Old 04-04-2013, 05:39 PM   #13
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Quote:
Originally Posted by worthogg View Post
then reduce from 3/4 to 1/2" for the ball valve? or did you get a stainless 3/4 ball valve and reduce at the barb?
thanks
I did a 3/4" -> 1/2" barb, no ball valve on the outside since the 50 quart version can't use that because of clearance. You will want to have either 1/2" or 3/8" barb at the end just so you don't have a huge hose.

So you could do 3/4" coupler -> 3/4" ball valve -> (3/4" -> 1/2") barb. Up to you.

Or do a 3/4" coupler -> (3/4" -> 1/2" reducer) -> 1/2" ball valve

Just depends how long you want it
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Old 04-04-2013, 05:55 PM   #14
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So I just went and found a 3/4" stainless nipple I had laying around from another project. The hole on my cooler is almost exactly the same size as the nipple. I was able to actually thread the nipple right into the the hole. With an oring and washers there's no way this would leak. My only concern is that the o.d. of stainless washers would be so big that I would have to grind the bottoms off in order to clear the bottom of the cooler. Not a big deal I guess. Not thrilled about all the fittings needed to reduce down to 1/2", but if I can find a 3/4" ball valve I'll go the 3/4 to 1/2" barb route on the outside. 3/4 to 1/2" bell inside for my SS screen. This in turn means using 1" PVC I guess as a spacer on the outside. Not sure if this is the route I want to take or not.
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Old 04-04-2013, 06:32 PM   #15
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anyone have a link to silicone washers that fit over 3/4" nipples?


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