<font face=“Arial, Verdana” style=“font-family: Arial, Verdana; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; font-size: 10pt;”>For racing course prep, often officials inject water into the snow to make it denser so it holds up better (and ruts less). Here is a video from Lake Louise officials. There is a better one put out by Loveland officials where you can actually see the process. </font>
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<font face=“Arial, Verdana”>https://www.youtube.com/watch?v=EFlmmdj-1fY</font>
Basically it’s a 10′ or so PVC pipe with holes in the bottom connected to the snowmaking system. You open a valve momentarily and water shoots out the holes into the snow. Slide down the hill half a foot and repeat.