I've found my local, small town hardware store has "wall-o-water" s on the shelf that I can buy and avoid the shipping cost of buying them from a catalog. I live in NE Indiana which has cold winters and unpredictable Springs so I would love to get a head start. Does this product really give you a 4 to 6 week head start like it advertises? It claims to protect down to 16 degrees F. I would like the advantage of other's results before I get to optimistic. Thanks in advance.
Al