Utah Administrative Code
Topic - Health
Title R392 - Population Health, Environmental Health
Rule R392-302 - Design, Construction and Operation of Public Pools
Section R392-302-22 - Overflow Gutter System and Skimming Devices

Universal Citation: UT Admin Code R 392-302-22

Current through Bulletin 2024-06, March 15, 2024

(1) The manager shall ensure that:

(a) a pool having a surface area greater than 3,500 square feet has an overflow gutter system; and

(b) a pool having a surface area equal to or less than 3,500 square feet has either an overflow gutter system or a skimmer.

(2) The local health officer may allow an exemption to the size requirement for overflow gutter systems and allow a skimmer system in a pool that has a surface area greater than 3,500 square feet if sufficient skimming is provided through the skimmer system.

(3) If the pool has an overflow gutter system, the manager shall ensure that the overflow gutter system:

(a) extends completely around the pool, except at stairs, sloped entries, recessed steps, ladders, or other areas approved by the local health officer;

(b) is capable of continuously removing pool water at 100% of the maximum flow rate;

(c) is connected to the circulation system by a surge system that:
(i) has a surge capacity of not less than one gallon for each square foot of surface area;

(ii) has water level sensors and controls built in to maintain the pool water level; and

(iii) promotes continuous skimming in each surge condition; and

(d) is designed and constructed:
(i) to prevent entrapment of any part of a bather's body;

(ii) with the opening into the gutter system beneath the coping or grating that:
(A) is at least three inches in height; and

(B) has a depth of at least three inches;

(iii) with a handhold as described in Subsection R392-302-16(2);

(iv) with suction outlet pipes that are at least two inches in diameter; and

(v) with the total combined area of all unobstructed openings in the outlet grates being equal to or greater than a minimum of 1-1/2 times the total cross sectional area of all connected suction outlet pipes.

(4) If the pool has a skimmer, the manager shall ensure that each skimmer:

(a) complies with NSF/ANSI 50-2015 standards, which is incorporated by reference;

(b) is installed on any pool with a surface area equal to or less than 3,500 square feet;

(c) has at least one skimming device provided for each 500 square feet of water surface area or fraction thereof;

(d) is spaced to provide an effective skimming action over the entire surface of the pool if two or more skimmers are required;

(e) is installed with the normal operating level of the pool water at the midpoint of the skimmer opening or in accordance with the manufacturer's instructions;

(f) is built into the pool wall;

(g) has piping and other components that are designed for a total capacity of at least 80% of the maximum flow rate of the circulation system;

(h) is designed with a minimum flow rate of 25 gallons per minute, and a maximum flow rate of 55 gallons per minute; and

(i) is equipped with a weir that:
(i) is maintained properly for continuous skimming of the surface water;

(ii) moves freely and automatically adjusts to variations in water level over a range of at least four inches; and

(iii) operates at any flow variation.

(j) is provided with one of the following systems to prevent air-lock:
(i) an equalizer pipe as described in Subsection (6);

(ii) a surge system; or

(iii) another system approved by the local health officer that will assure enough water for pump suction in the event the pool water drops below the weir level.

(5)

(a) The local health officer may allow a higher maximum flow rate through a skimmer up to the skimmer's NSF rating if the piping system is designed to accommodate the higher flow rates; or

(b) The local health officer may allow may allow the manager to install a skimmer that is designed with a minimum of 3.125 gallons to a maximum of 6.875 gallons per linear inch of weir.

(6) The manager shall ensure that an easily removable and cleanable basket or screen through which any overflow water passes:

(a) is provided to trap large solids;

(b) is maintained in good working condition; and

(c) is emptied as often as necessary to prevent clogging and buildup of potentially infectious debris.

(7) The manager shall ensure that if an equalizer pipe is used to prevent air-lock, the equalizer pipe is:

(a) sized to meet the capacity requirements for the filter and pump;

(b) not less than two inches in diameter;

(c) designed to control velocity through the pipe in accordance with Subsection R392-302-19(3)(b)(ii);

(d) located at least one foot below a valve or float assembly that prevents suction from the equalizer pipe under normal operating conditions;

(e) protected with a cover or grate that meets the requirements of ANSI/APSP-16 2011, as incorporated in 16 CFR 1450.3 dated July 5, 2011; and

(f) sized to accommodate the design flow requirements described in Subsection (3).

(8) The manager shall maintain proper operation of each valve and float assembly.

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