Hot Tub Cover
Take good care of your hot tub cover, regularly cleaning the inside and outside of the cover and periodically applying a UV protector to the external vinyl.
As hot tub covers get older, they may begin to absorb moisture and gain weight. This is a gradual process which is quite often not detected by the owner. If the cover cores becomes saturated, the cover will no longer be as effective at insulating your hot tub and keeping the heat within the hot tub.
When buying a new cover, always get the best cover that you possibly can, the savings made from having a well insulted spa cover will help offset the cost of the cover.
If you haven't already, get yourself a cover lifter for your hot tub. It makes removing and replacing the cover very easy and as an added bonus it keeps the cover off the ground prolonging its life.