Hall County officials agreed Thursday to support local developers in their opposition to a new interpretation of a decades-old rule concerning how septic systems are permitted. “I know Hall County commissioners can’t change the rule, but I would like y’alls support,” said Harold Kilgore, owner of Gravelator Systems in Talmo, a septic install and repair business. The Department of Public Health, through the district office, clarified earlier this year the minimum requirements necessary for approving septic systems, including land area requirements for initial and replacement systems, as well as county zoning and setback ordinances.