Tenn. Comp. R. & Regs. 1200-23-05-.08
Current through June 10, 2024
Table I
Main Pool (6 Hour Turnover)
| Capacity (Gallons) | Minimum Face Piping, Return Line Size in Inches* | Main Drain Size in Inches | Minimum Size of Pump in Horsepower** | High Rate Minimum Filter Size | |
| Sq. Ft | Diameter | ||||
| 12,501-18,000 | 2 | 21/2 | 1 | 4.9 | 30" |
| 18,001-23,400 | 2 | 21/2 | 11/2 | 4.9 | 30" |
| 23,401-31,000 | 21/2 | 21/2 | 2 | 7.1 | 36" |
| 31,001-33,000 | 21/2 | 21/2 | 21/2 | 7.1 | 36" |
| 33,001-43,000 | 21/2 | 21/2 | 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 | 5-71/2 | 14.0 | |
| 80,001-115,000 | 4 | 4 | 71/2 | 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)
| Capacity (Gallons) | Minimum Face Piping, Return Line Size in Inches* | Main Drain Size in Inches | Minimum Size of Pump in Horsepower** | High Rate Filter Minimum Size Sq. Ft Diameter | |
| 350-1,000 | 11/2 | 21/2 | 3/4 | 3.1 | 24" |
| 1,001-1,500 | 2 | 21/2 | 1 | 4.9 | 30" |
| 1,501-2,000 | 2 | 21/2 | 11/2 | 4.9 | 30" |
| 2,001-2,700 | 21/2 | 21/2 | 2 | 7.1 | 2@30" or 1@36" |
| 2,701-3,500 | 3 | 3 | 3 | 7.1 | 1@4 8" or |
| 3,501-4,500 | 4 | 4 | 5 | 10.0 | 2@30" |
Table III
Wading Pools (One Hour Turnover)
| Capacity (Gallons) | Minimum Face Piping, Return Line Size in Inches* | Main Drain Size in Inches | Minimum Size of Pump in Horsepower** | High Rate Filter Minimum Size | |
| Sq. Ft | Diameter | ||||
| 0-2,000 | 11/2 | 21/2 | 3/4 | 3.1 | 24" |
| 2,001-3,000 | 2 | 21/2 | 1 | 4.9 | 30" |
| 3,001-4,000 | 2 | 21/2 | 11/2 | 4.9 | 30" |
| 4,001-5,000 | 21/2 | 21/2 | 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
Tenn. Comp. R. & Regs. 1200-23-05-.08
Authority: T.C.A. §§ 4-5-202, 68-1-103, 68-14-301 et seq. , 68-14-401, and 68-14-402.