We used to have to scrub our deck to remove the rust bleeding off the base of our steel propane tank. Then my husband, Dave, cut a piece of garden hose long enough to completely enclose the tank’s circular base. He slit the hose lengthwise and fit it over the lip of the tank base. The hose keeps our deck free of rust and protects it from getting dinged by the metal tank. Don’t forget to remove the hose before you exchange the tank or take it ashore to get a refill.