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Old 08-09-2013, 07:30 AM
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Originally Posted by Simple guy View Post
you'll be fine flushing with a garden hose. there will not be enough time for minerals to collect and corrode parts, like boiling water in a pot.. boil too long a film of mineral deposits appears... Just make sure all the garden hose water is fully drained. pouring water into the radiator with the lower hose off will only drain straight down through the end cap and onto your feet.

just don't run the engine too long because plain water doesn't have the lubricant for the pump.

having the heat on full blast does nothing besides letting you know some water has made it to the heater core. your climate control knobs DO NOT affect the flow to the heater core.

Im sorry. this statement is wrong.

When flush with the hose, you will leave that water in the block and in the system. When you go to put the new coolant in with that non distilled water you will develop scale in the system essentially corroding the system. May not happen immediately, but it will. i can promise you that.

IF you are in a senario where you must flush with a garden hose, you must cycle (run to operational temp) with distilled water 2-4 times to ensure you get most of the water diluted with distilled water.

Most people dont realize that anything but distilled water can essentially destroy part or all of your cooling system. Same thing goes with mixing different types of coolant or using the wrong coolant.
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