Just heard the weather report, and it appears there is a frost in the forcast. Although this frost wont affect your trailer, a freeze of over a day will, and it may be time to think of when you will winterize your trailer.
Some of our customers who don't have hot water often think they don't have to winterize. These people often blow out any water in the lines, and run the risk of water droplets freezing in the hand pump. Even with "just cold water" you should winterize to prevent the possibility of cracking your hand pump. It's really not worth taking a chance.
There is still some good camping left this season, some of the best days are in the fall. Plan ahead!