What do you guys think of this idea?
My house is basically sitting on springs (the water type, not the boing - boing type). Because of this, I have cold water running through my footing tile 365 days a year. The water is clean cold and probably drinkable but I'm not going to do that. What I am considering though is opening the backflow access hatch in the cold room and putting a line in with a small pump that would pump the water into a coil (basically make a cooling coil) that would be big enough to encircle a 5 gal keg. Then, I'm thinking put the keg into big rubbermaid tub and filling it with water and then putting the coil and carboy into the tub. Then use the cool water to cool the fermenter down to around 50 or so so that I could lager in the summer without having to come up with a 3rd fridge/freezer (one is for food etc, one is for cold beer).
Just wondering if anyone thinks that this would be possible. Maybe even hook a temperature controller to the pump so that it only came on when needed. I don't know the water temp but it's pretty cool.
Just thinking while I wait for my mash to finish.