<div dir="ltr"><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">about 30 years ago I fought this problem, Insulated the outside of the tank, 2" floating blue styrofoam, cattle learn to pushdown to drink. I used a solar thermal collector with I don't remember the rest, but today I would use a PV Panel. </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 10, 2020 at 3:30 PM gary easton <<a href="mailto:gary@arp-solar.com">gary@arp-solar.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Hello Wrenches. </div><div dir="auto">I have a friend in need of a way to keep stock tanks free of ice during winter months. Has any one had any experience with direct solar options for this?</div>-- <br><div dir="ltr">Sent from Gmail Mobile</div>
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