"My wife has decided that stouts on nitro are her favorite brews and told me to go get all the stuff I need to keep some stout on nitro for her."
Funny how it works this way, huh!?
Every time I come home with a package or UPS drops one off at the door I get the "you bought more beer making crap" look from SWMBO
She actually does not mind it, it's more of a "gawd! what else could you possibly need to make beer?" kind of attitude
Then I made a chocolate cherry stout, *for her* and all of a sudden she became interested in how to make it easier, closer and *prettier* to have it around the house, hahahaha
Back to the coolant lines...
Use the starch mixiture trick to see where the lines are in the sides/top/back, see this post