Dochere, "While reading these posts one must stop to wonder,"why does a lawncare professional know these things?" Maybe you're just a misplaced rocket scientist!" LOL Double, no TRIPLE that LOL! Things that make ya go Hmmmm. Bob, I can only agree with your view on Dennis Miller. How did HE ever end up op on Monday Night Football!? He wasn't funny as a comedian, (always laughing at his own jokes, looking around, like he had some "inside thing" going on.) And he SURE can't announce football, either! Sorry to get off the subject, here. Anyway, that's why I keep my Zamboni set at 6 1/2 to 6 3/4, with a tank operating temperature of 36 degrees.