Section 16.02.14.283 - SKIMMERS: CAPACITY01.Total Capacity. The total capacity of all skimmers used must be a minimum of two-thirds (2/3) of the required filter flow.02.Piping. Piping for skimmers used must be designed for a capacity of not less than eighty (80) percent of the required filter flow of the recirculation system, and in no case less than thirty (30) gallons per minute per eight (8) inches of weir.Idaho Admin. Code r. 16.02.14.283