Timothy Hannink wrote:
 I don't like the idea of pushing cold
> water into a running motor. Doesn't the constant input of cool water keep
> the thermostat from opening and staying open? If it does, the radiator loop
> will never get flushed out properly, since flow through it is controlled by
> the thermostat, and the flushing water will go back to the heater cores or
> out of the overflow.
>

Good point.  My Daddy always told me not to add cold water to a hot
engine because you might crack something.
  It occurs to me that I can hook my garden hose to the laundry tub
faucet and use hot water!

Larry A.