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dpb

wrote:
....
think that with most driveway snowmelt systems, the moisture contained
in the snow will evaporate into the air as it is melting, so the water
wont have a chance to run down the driveway and refreeze. ...

No way, no how if it's going to melt any amount of snow at all is all
the water going to be evaporated. W/o a drainage if it's allowed to
cool below freezing again, it'll be a skating rink wherever there isn't
drainage when it cools below freezing again.

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