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 Alexandria
 Code of Ordinances
 Title 11. Health, Environmental and Sanitary Regulations
 Chapter 11. Swimming Pools, Spa Pools and Health Clubs
 Article E. Spa Pools; Operation and Maintenance

  § 11-11-103. Water treatment and test equipment.  

Latest version.

  • (a)

    No chemicals other than those specified in section 11-11-69(a) shall be used to treat spa pool water without written authorization from the director.

    (b)

    Except as noted below and in section 11-11-103(c), disinfectant residual, pH, total alkalinity, and calcium hardness shall be continuously maintained within the minimum and maximum ranges specified in Table IV. If the spa pool is equipped with automatic chemical controllers utilizing ORP measurements, ORP shall be maintained within the ranges specified in Table IV. Disinfectant residual limits specified in Table IV may be exceeded in pools with automatic chemical controllers, which utilize ORP measurements and continually analyze and automatically control pH and the disinfectant residual, only if necessary to maintain the ORP specified in Table IV. However, the disinfectant residual shall not exceed 10 ppm in such spa pools. The use of ORP sensing equipment does not eliminate the requirement for routine water testing specified in section 11-11-94. Disinfectant residual limits specified in Table IV may be exceeded when superchlorinating a spa pool provided that no patrons are present in the spa pool water and that the disinfectant level is returned to the acceptable range prior to allowing patrons to enter the spa pool water.

    Table IV.
    Chemical Water Quality Standards for Spa Pools

    Parameter Minimum Ideal Maximum
    Free Chlorine Residual (ppm) 2.0 3.0—4.0 10.0
    Combined Chlorine Residual (ppm) 0.0 0.0 0.4
    Bromine Residual (ppm) 3.0 4.0—6.0 10.0
    Oxidation Reduction Potential (ORP) (millivolts) 650 750—900 N/A
    pH 7.2 7.4—7.6 7.8
    Total Alkalinity (ppm) 60 80—120 180
    Calcium Hardness (ppm) 150 200—400 1000
    Total Dissolved Solids (ppm) 0 1600

     

    (c)

    An approved water quality test kit shall be provided as specified in section 11-11-69(e).

    (d)

    Hand-feeding of chemicals shall not be permitted while the spa pool is open or accessible to patrons and within 30 minutes of opening. (Ord. No. 4649, 3/13/10, Sec. 1; Ord. No. 5010, 5/14/16, Sec. 1)