Hi I own a 2003 Fleetwood Fiesta workhorse. I live in Myrtle Beach South Carolina, the weather is mild and I wonder if I can just blow out the water lines with air and add some antifreeze to the drains. I do drain the hot water heater an bypass it. This is second winter, the first winter I bought it in Dec and had it winterized. Plan on using till at least after Thanksgiving, and possibly longer. Thanks for the help still learning