S.C. Code Regs. § § 61-51.F

Current through Register Vol. 48, No. 9, September 27, 2024

Section 61-51.F - DESIGN OF TYPE "D" POOLS

1. Applicability. Requirements of this section are applicable to all new construction and alterations of existing public swimming pools.

2. Type "D" Pools. In addition to meeting all other applicable requirements of these regulations as found in Section C, including steps and handrails, except where fiberglass spas are used, figure four handrails may be acceptable provided they extend over the last step. Type "D" pools must also meet the following:

(a) There must be a minimum of two (2) inlets, two (2) main drains to be located on the pool bottom floor and at least one (1) surface skimmer or gutter system positioned and operated in accordance with R.6-51.C.26.

(b) All drains providing water to the booster system must be located on the pool bottom floor.

(c) Inlets and outlets must be provided and arranged to produce complete recirculation of pool water and the maintenance of a uniform and adequate level of disinfecting medium at all times.

(d) The maximum depths for Type "D" pools shall be four (4) feet. Type "D" pools must be provided with a means of completely draining the contents of the pool to waste without passing through the filter. This may be done by a gravity waste line directly from the pool or by pumping and by-passing the filter.

(e) All Type "D" pools must have a single timer set for a maximum of 15 minutes which must turn on and off the hydro pump and blower if provided. This timer switch must be inaccessible to persons while in the spa.

(f) An emergency cut-off switch must be provided in the pool area which, when triggered, will simultaneously shut off the spa booster and recirculation pumps. This switch must be clearly visible, labeled, easily accessible at all times, and no greater than a twenty five (25) foot distance from the entrance steps of the spa.

(g) The top front edge of seats must be marked with a black or dark colored stripe in accordance with R.61-51.D.2(h).

(h) No sliding boards are allowed in Type "D" pools.

3. Recirculation System.

(a) A recirculation system consisting of pumps, motors, piping, filters, inlets, outlets, disinfecting and other water conditioning equipment and necessary accessories must be provided for water purification in accordance with water quality criteria contained herein and must be designed to completely turnover the entire pool volume per the following schedule based upon pool volume:

(i) Up to one thousand and five hundred (1,500) gallons: one-half (1/2) hour.

(ii) One thousand and five hundred (1,500) gallons up to four thousand (4,000) gallons: one (1) hour.

(iii) Four thousand (4,000) gallons up to eight thousand (8,000) gallons: two (2) hours.

(iv) Eight thousand (8,000) gallons up to sixteen thousand (16,000) gallons: four (4) hours.

(v) Over sixteen thousand (16,000) gallons: six (6) hours.

(b) The recirculation system shall be designed to operate on a twenty-four (24) hour basis. The normal pattern of recirculation developed must be fifty (50) percent flow through the overflow or skimming facilities and fifty (50) percent through the main drains. The recirculation system must be designed with adequate capacity such that one hundred (100) percent of the recirculation flow can pass through the overflow or skimming facilities and one hundred (100) percent through the main drain.

4. Pool Deck. The pool deck must be constructed in accordance with Section C, Paragraph 6.

5. Pool Temperatures. For heated pools a thermostat control must be provided with an automatic cut-off for an upper limit of 104 degrees Fahrenheit and above.

6. Automatic Controllers. All new Type "D" pools shall be equipped with automatic controls to provide adequate feed rate of halogen and pH adjustment chemicals in order to keep the disinfectant and pH at the required levels on a continuous demand basis. A warning light or indicator shall be provided in a visible location for supervisory control. The device shall indicate absence of chemicals in feeders, improper adjustment of chemical dosage, or any other mechanical or operational malfunctions, e.g. recirculation flow stops.

S.C. Code Regs. § 61-51.F

Replaced and amended by State Register Volume 38, Issue No. 6, eff 6/27/2014.