 If you ever wondered why the water that comes out of your water dispenser is so much colder and the water that comes out of your tap, well here's why. It all starts with this little device right here, it's a water fill valve and if you notice there's one inlet and you might wonder where is that located out in my refrigerator. Well if you ever pull your refrigerator out to clean behind it, you notice a copper line or maybe a plastic line going into it and this is where it goes into. And if you happen to need ice, water will come out of here and go to fill the ice maker up but we're more interested in where does the cold water come from so when you take and push the lever here, you trip a switch which sends 120 volts down to this green cell right here, opens up, water from your house comes in through here, comes out here, goes down through a filter but still we haven't answered the question how does it get cold. Well to find out why I'm going to open up the refrigerator and I've removed some of the crisper shelves here and if you notice a coil down there, that's where the water is stored. Water comes in the bottom coil and it fills the coil up and it sits there and if your refrigerator is at 40 degrees then your water will be at 40 degrees so when you take and trip the lever here about water it just pushes water in the bottom one through our fill valve comes out the top goes down comes up through the freezer door and comes out and giving you that nice glass of cold water which you so much forward to