SPS 390.13(9)(b)2.
2. Additional hose bibbs shall be provided as necessary, and at intervals so as to permit adequate cleaning of the deck and toilet facilities using a maximum of 100 feet of hose when laid across the deck surface.
SPS 390.13(10)(a)1.
1. Organic material and inorganic pervious material shall be separated from the otherwise required deck by an additional 5 feet of deck.
SPS 390.13(10)(a)2.
2. Organic material and inorganic pervious material shall be installed in a 4-inch depression surrounded by a 42-inch high barrier.
SPS 390.13(10)(b)
(b) Sand play areas may not be located within a pool enclosure unless all of the following are met:
SPS 390.13(10)(b)1.
1. The sand play area is separated from the deck by a 42-inch high rope and bollard or other fence barrier.
SPS 390.13(10)(b)2.
2. Foot or body showers shall be provided at any entrances to the deck from the sand play area.
SPS 390.13 History
History: CR 08-056: cr.
Register February 2009 No. 638, eff. 3-1-09; correction to numbering of (8) (f) made under s.
13.92 (4) (b) 1., Stats.,
Register February 2009 No. 638; correction in (10) (a) (intro.) made under s.
13.92 (4) (b) 7., Stats.,
Register December 2011 No. 672.
SPS 390.14
SPS 390.14 Circulation systems. A water circulation system consisting of pumps, piping return inlets and suction outlets, filters and other necessary equipment shall be provided that complies with all of the following requirements:
SPS 390.14(1)
(1) Turnover rate. Circulation system equipment shall be designed to produce a turnover rate as specified in Table 390.14-1 or Table 390.14-2.
Table 390.14-1
a Calculate an average turnover time for multi-sectional basins.
b For pool types not listed herein, contact the department.
c Based on flow and pressure drop with a clean filter condition.
d Or as otherwise approved by the department.
Table 390.14-2
N/A Not applicable
a The number of persons is equal to the posted patron load.
SPS 390.14 Note
Note: A therapy area within a multi-section pool having a temperature of
< 93 oF is considered to be an activity pool.
SPS 390.14(2)
(2) Separate systems. The circulation system shall be separate for each public swimming pool or water attraction.
SPS 390.14(3)(a)(a) Except as provided in
pars. (b) and
(c), public swimming pool or water attraction circulation systems may not serve slide or spray features.
SPS 390.14(3)(b)
(b) A maximum of 10 percent of the required circulation system rate may be provided for the lubrication of slides or to spray features.
SPS 390.14(3)(c)
(c) Flow in excess of the required circulation rate may serve slides and spray features.
SPS 390.14(4)
(4) Accessibility. Circulation system equipment, including but not limited to pumps, skimmers, filters, gauges, meters and thermometers, shall be readily accessible for inspection, repair or replacement.
SPS 390.14(5)
(5) Component standards. Equipment that is within the scope of ANSI/NSF 50, circulation system components and related materials, shall be listed by an acceptable listing agency to meet ANSI/NSF 50 or equivalent.
SPS 390.14(6)(a)(a) Pool equipment and related piping shall be supported to prevent damage from misalignment and settling.
SPS 390.14(6)(b)
(b) Pool equipment shall be installed in accordance with manufacturer's printed instructions and as specified in this chapter. If there is a conflict between the manufacturer's printed instructions and requirements of this chapter, the requirements of this chapter shall take precedence.
SPS 390.14(7)(b)
(b) Pool piping shall be sized to permit the rated flows for filtering and cleaning without exceeding the maximum design head of the pump.
SPS 390.14(8)(a)(a) A pump suction compound gauge shall be included in all circulation systems.
SPS 390.14(8)(b)
(b) A pump discharge gauge shall be located upstream of all throttling valves.
SPS 390.14(8)(c)
(c) A filter pressure gauge shall be included serving all filters in circulation systems.
SPS 390.14(8)(d)
(d) A flow meter capable of displaying flow during filtration shall be included in all circulation systems.
SPS 390.14(9)
(9) Testing. Circulation system piping that is installed onsite shall be subjected to an induced static hydraulic pressure test at 25 pounds per square inch for at least one hour.
SPS 390.14(10)(a)(a)
Design. Filters shall be specified so that when operated and maintained in accordance with the manufacturer's printed instructions, the system provides the water clarity required in
ch. ATCP 76.
SPS 390.14(10)(b)1.1. Filters other than high rate sand filters shall be specified so that the maximum flow rate does not exceed those under ANSI/NSF 50.
SPS 390.14(10)(b)2.
2. High rate sand filters shall be specified so that the maximum flow rate does not exceed 15 gallons per minute per square foot or bed surface area.
SPS 390.14(10)(c)1.1. Pressure-type filters shall be provided with a means to permit the release of internal pressure.
SPS 390.14(10)(c)2.
2. Filters incorporating an automatic air vent as the principal means of air release shall have a lid that provides a slow and safe release of pressure as a part of the design and have manual air release in addition to the automatic release.
SPS 390.14(10)(c)3.
3. Separation tanks used in conjunction with a filter tank shall comply with
subd. 2.
SPS 390.14(10)(c)4.
4. The following statement shall be placed within the area of the air release so as to be clearly visible: “WARNING. DO NOT START UP THE SYSTEM AFTER MAINTENANCE WITHOUT FIRST OPENING THE AIR RELEASE AND PROPERLY ASSEMBLING THE FILTER AND SEPARATION TANK."
SPS 390.14(11)(a)(a) Circulation piping shall be listed as meeting one of the following methods:
SPS 390.14(11)(b)
(b) All circulation piping shall be listed to withhold a pressure 50 percent greater than the maximum design pressure.
SPS 390.14(12)(a)(a) All circulation pumps shall be capable of providing the design flow rates at one of the following minimum total dynamic heads:
SPS 390.14(12)(a)4.
4. A maximum total dynamic head value recommended by the filter manufacturer that allows the filter to function under all operating conditions.
SPS 390.14(12)(b)
(b) Pumps located below the waterline of a basin shall have isolation valves installed on suction and discharge lines.
SPS 390.14(12)(c)
(c) Pumps located above the waterline of the pool shall be self-priming or the system shall be designed to provide a means for priming.
SPS 390.14(12)(d)
(d) Intake strainers shall be provided upstream of all circulations pumps on pressure filter systems.
SPS 390.14(13)(a)(a) Inlets and outlets shall be provided and arranged to produce a uniform circulation of water and maintain the distribution of sanitizer residual throughout the pool.
SPS 390.14(13)(b)1.1. Return inlets shall be designed and installed so as to not constitute a hazard to the patron.
SPS 390.14 Note
Note: An example of an inlet installation constituting a hazard to a patron is an inlet installed on a racing lane cross.
SPS 390.14(13)(b)3.
3. Except as provided in
subd. 4., the velocity of flow through any inlet orifice shall be in the range of 5 to 20 feet per second
SPS 390.14(13)(b)4.
4. For pools equipped with skimmers the velocity of flow through any inlet orifice shall be in the range of 10 to 20 feet per second.
SPS 390.14(13)(b)5.
5. Except for leisure rivers, the minimum number of return inlets shall be based on at least one additional inlet per 300 square feet of pool surface area or fraction thereof.
SPS 390.14(13)(b)6.
6. There shall be at least one wall return inlet for each 10 feet of stairway width, recessed bench length or swimout length or width or fraction thereof.
SPS 390.14(13)(b)8.
8. Bottom return inlets shall be considered to have an area of influence of a radius of 10 feet.
SPS 390.14 Note
Note: See ch.
SPS 390 Appendix for further explanatory material.
SPS 390.14(13)(b)10.
10. Except for leisure rivers, there shall be a wall return inlet within 5 feet of each corner of a basin wall.
