They use hot water to melt the snow, that's why you see the water come through first.

We got 18" of snow which ranks as #5 top snowfall amount. Spent most of the AM digging out.

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'07 Yukon 2500
'13 Subaru Outback 3.6R
'13 Orbea Carpe 9-speed

Currently Benzless
Formerly: 300TD, S600, E55, 560SEL

---= The forest breathes, listen.
-Native American elder