The recirculation system must recirculate a water volume equal to the pool volume in 30 minutes or less, except that a minimum rate of 35 gallons per minute is required.
The recirculation system must have at least two remote inlets to the pool.
The main drain must consist of:
a grate-covered bottom opening at least 100 square inches in size; or
a bottom opening with an antivortex cover.
The agitation system must have a separate pump. If sidewall suction fittings are used, at least two inlets, remotely located, must be provided.
The agitation system must be controlled by a timer with the control switch accessible to pool users but at least five feet from the pool. The maximum time setting must be 15 minutes.
Access to a spa pool must be provided according to this subpart.
Access to the pool must be provided by an unobstructed deck, at the pool elevation, which extends at least five feet from the pool around the entire perimeter.
Where a deck cannot be provided as specified in item A, a five-foot wide deck at the pool elevation must extend along at least 25 percent of the pool perimeter. The remaining perimeter must be one foot or less to a wall, partition, or other effective barrier to restrict access. The deck must provide complete and unobstructed access to the steps in the pool.
Where access is provided by sitting on the edge of a raised pool and swinging the legs into the pool:
the deck requirement in item A or B must be met;
the pool must be no less than 18 inches nor more than 20 inches above the deck;
steps with equal risers and 12-inch minimum treads must be provided outside the pool which line up with the steps inside the pool; and
the pool edge must not exceed 12 inches in width.
The requirements for steps in this subpart apply to spa pools.
Steps for access to an elevated spa pool must have a handrail and a finished surface that meets the requirements for decks in part 4717.3350.
The disinfection residual must be maintained in accordance with part 4717.1750, subpart 4.
Pregnant women, small children, or persons with heart disease, diabetes, high blood pressure, or low blood pressure should not enter the spa except under advice of a physician.
Avoid use while under the influence of alcohol or drugs.
Exposure may result in nausea, dizziness, or fainting. Observe a reasonable time limit.
May 11, 2009
Copyright © 2009 by the Revisor of Statutes, State of Minnesota. All rights reserved.