The temporary fix for formerly out-of-service North Hall fire hydrants is satisfactory to the Insurance Services Office, authorities said last week. “As long as the water flow or the water supply is maintained, it will have no effect on the ISO rating whatsoever,” Hall County Fire Services Capt. Zachary Brackett said. Last week, Gainesville’s Department of Water Resources installed a temporary booster pump station on Highland Road to return service to hydrants that have been out of service since January.