Table I Main Pool (6 Hour Turnover) Minimum Face High Rate Filter Piping, Return Minimum Size of Minimum Size Capacity (Gallons) Line Size in Main Drain Size in Pump in Inches* Inches Horsepower** Sq. Ft Diameter 12,501-18,000 2 2½ 1 4.9 30” 18,001-23,400 2 2½ 1½ 4.9 30” 23,401-31,000 2½ 2½ 2 7.1 36” 31,001-33,000 2½ 2½ 2½ 7.1 36” 33,001-43,000 2½ 2½ 3 7.9 43,001-47,500 3 3 3 9.0 47,501-63,000 3 3 5 12.0 63,001-80,000 4 4 5-7½ 14.0 80,001-115,000 4 4 7½ 21.0 115,001-180,000 6 6 10 33.0 180,001-250,000 8 8 15 46.0 Table II Spas and Whirlpools (30 Minute Turnover) Minimum Face High Rate Filter Piping, Return Minimum Size of Minimum Size Capacity (Gallons) Line Size in Main Drain Size in Pump in Inches* Inches Horsepower** Sq. Ft Diameter 350-1,000 1½ 2½ ¾ 3.1 24” 1,001-1,500 2 2½ 1 4.9 30” 1,501-2,000 2 2½ 1½ 4.9 30” 2,001-2,700 2½ 2½ 2 7.1 2@30” or 1@36” 2,701-3,500 3 3 3 7.1 1@48” or 3,501-4,500 4 4 5 10.0 2@30” Table III Wading Pools (One Hour Turnover) Minimum Face High Rate Filter Piping, Return Minimum Size of Minimum Size Capacity (Gallons) Line Size in Main Drain Size in Pump in Inches* Inches Horsepower** Sq. Ft Diameter 0-2,000 1½ 2½ ¾ 3.1 24” 2,001-3,000 2 2½ 1 4.9 30” 3,001-4,000 2 2½ 1½ 4.9 30” 4,001-5,000 2½ 2½ 2 7.1 2@30” or 1@36” 5,001-8,000 3 3 3 8.3 1@42” or 2@30” 8,001-12,500 4 4 5 11.0 2@36” or 3@30” * Piping other than PVC is approved for use. ** The pump curve provided by the manufacturer may indicate that a different size pump will achieve the required turnover rate. Note: If two or more filters are used to achieve the desired area, they must be the same size. Figure 1 Minimum Dimensions for Diving Portion of Pools (This drawing does not show the shallow portion of the pool.) Typical position of tip of board relative to Pt.A RELATED DIVING MINIMUM MAXIMUM RADIUS EQUIPMENT MINIMUM DIMENSIONS WIDTH OF POOL AT: FROM VERTICAL MAX. MAX. DIVING BOARD BOARD HGT. D1 D2 L1 L2 PT. A PT. B PT. C R1 R2 R3 LENGTH OVER WATER 10’ 26” (2.59m) (2.59m) (0.76m) (3.66m) (6.10m) (6.10m) (6.10m) (2/3m) 8’6” 8’6” 2’6” 12’0” 20’0” 20’0” 20’0” 20” 12” 8” 12’ 30” (2.74m) (2.74m) (0.81m) (3.66m) (6.10) (6.10m) (6.10m) (3/4m) 9’0” 9’0” 3’0” 12’0” 20’0” 20’0” 20’0” 22” 12” 8” 16’ 39.37” (3.05m) (3.05m) (1.22m) (6.10m) (6.71m) (6.71m) (6.71m) (1m) 10’0” 10’0” 4’0” 20’0” 22’0” 22’0” 22’0” 28” 12” 8” 16’ 118.11 (3.66m) (3.66m) (1.83m) (6.10m) (7.32m) (7.32m) (7.32m) ” (3m) 12’0” 12’0” 6’0” 20’0” 24’0” 24’0” 24’0” 31” 12” 8” NOTE: Placement of boards shall observe the following minimum dimensions. With multiple board installations minimum pool widths must be increased accordingly. 1 Meter or Deck Level Board to Pool Side 10’ (3.05m) 3 Meter Board to Pool Side 12’ (3.66m) 1 Meter or Deck Level Board to 3 Meter Board 10’ (3.05m) 1 Meter or Deck Level to Another Deck Level Board 8’ (2.44m) 3 Meter to Another 3 meter Board 10’ (3.05m)

Authority: T.C.A. §§ 4-5-202, 68-1-103, 68-14-301, et seq., 68-14-401, and 68-14-402. Administrative History: Original rule filed March 13, 2000; effective May 27, 2000.