A new analysis says San Diego must raise water rates 17.6 percent over the next two years to fund the city’s Pure Water sewage recycling system and cover rising costs to buy imported water and replace aging pipes. The average monthly bill for a customer in a single-family home would increase from $81.07 to $95.03 in November 2023, and then to $103.06 in January 2025. Bills for high-volume water users would likely climb even more. Water rates in San Diego would jump from just below the current median for local water agencies to what is currently the top tier. The only water agencies in the county whose current rates are higher than that planned level are Rincon del Diablo, Fallbrook, Padre Dam, Rainbow and Del Mar.