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Originally Posted by ku4zs

Ok, my mind has been brainstorming how to do this. I know of some other members that have installed a hot and cold water outside faucet so that they can do this. Those of us who cannot do something like this, I think I have something that may help. I have not tested it yet, but I think I will run to Lowe's to get the piece I need to test this.

Here is my idea. Most people only have a cold water outside faucet. Well, what if you turned on your bathtub's hot and cold water knobs and then plugged up the outlet so that nothing gets out. I think the easiest way to do this is to put a plug on your shower head. Just unscrew the shower head, plug it up (with a screw on plug, dont just shove stuff in there), then turn on the bathtub. If you have a plastic shower head attachment, this is easily done without tools, just hand screw it. Now, with both hot and cold water on, but it cant go anywhere, you have effectively tied your hot and cold water pipes together.

Now, when you turn on your outside faucet, assuming it is located close to the bathtub's water attachment (too far away and I doubt this will work), then you should have some backflow from the hot side back to the cold side and out the faucet. How much backflow? that depends. I doubt there will be much, being you have a hot water heater, and the bathtub's piping in the way. Just like electricity, water will take the path of least resistance most of the time, but I imagine there will be maybe 20% flow from the other direction. With your hot water heater all the way up to temperature, I think this will mean quite a difference in temperature coming out the faucet.

Who thinks this may work?

What in the name of all is good have you been smoking or injested?...Step away from the keyboard before you hurt yourself....Skip....