Page 41
BALANCING THE pH
A. The ideal pH level for your spa water is 7.2-7.6.
B. ThepHlevelisthemeasureofacidityandalkalinity.Valuesabove7.6arealkaline;thosebelow7.2areacidic.MaintainingtheproperpHlevel
is extremely important for:
• Optimizingtheeffectivenessofthesanitizer.
• Maintainingwaterthatiscomfortablefortheuser.
• Preventingequipmentdeterioration.
C. Ifthespawater’spHlevelistoolow,thefollowingmayresult:
• Thesanitizerwilldissipaterapidly.
• Thewatermaybecomeirritatingtospausers.
• Thespa’sequipmentmaycorrode.
®
®
pH/
D. If the pH level is too high, the following may result:
• Thesanitizerislesseffective.
• Scalewillformonthespashellsurfaceandtheequipment.
• Thewatermaybecomecloudy.
• Thefiltercartridgeporesmaybecomeobstructed.
NOTE: After adding sodium hydrogen carbonate or sodium bisulfate, before testing the water for pH. Measurements taken too
soon may not be accurate.
E. It is important to check the pH on a regular basis. The pH will be affected by the bather load, the addition of new water, the addition of various
chemicals, and the type of sanitizer used.
F. When the pH is within the recommended range, proceed to the final step.
MAINTAINING THE SANITIZER LEVEL
A. Sanitizer is extremely important for killing algae, bacteria and viruses, and preventing unwanted organisms from growing in the spa. At the
sametime,youdon’twanttoohighasanitizerlevel,oritcanirritateyourskin,lungs,andeyes.
B. Always maintain the sanitizer level in your spa at the recommended level for each type of sanitizer.
C. Watkins recommends only the following sanitizers:
• SodiumDichloro-s-Triazinetrione(sodiumdichlororchlorine)
• BrominatingConcentrate
™ (one step granular bromine)
• BaquaSpa
®
(please consult your BaquaSpa manual for instructions on the use of this product).
Page 41
Water Quality and Maintenance
ALKALINE
SPA WATER
(SCALING ZONE)
ADD pH
DECREASER TO
LOWER pH
ACIDIC SPA
WATER
(CORROSIVE
ZONE)
ADD pH
INCREASER TO
RAISE pH
COMFORT ZONE
IDEAL