Gainesville is once again considering the idea of a “rain tax” to pay for upgrades and replacements to aging stormwater infrastructure. Public Utilities Director Kelly Randall said his staff will continue to evaluate the level and extent of the need — including where and how much pipe to replace, as well as how often to conduct inspections — before making a recommendation in December about how to fund the improvements. The city has about 170 miles of pipe, the vast majority of which is corrugated metal and reinforced concrete.