HotSpring Aria User Manual

Page 51
BALANCING THE pH
A. The ideal pH level for your spa water is 7.4-7.6.
B. ThepHlevelisthemeasureofacidityandalkalinity.Valuesabove7arealkaline;thosebelow
7 are acidic. Maintaining the proper pH level is extremely important for:
• Optimizingtheeffectivenessofthesanitizer.
• Maintainingwaterthatiscomfortablefortheuser.
• Preventingequipmentdeterioration.
C. If the spa water’s pH level is too low, the following may result:
• Thesanitizerwilldissipaterapidly.
• Thewatermaybecomeirritatingtospausers.
• Thespa’sequipmentmaycorrode.
If the pH is too low, it can be increased by adding Hot Spring
®
FreshWater
®
pH/Alkalinity Up (sodium hydrogen carbonate) to the spa water.
D. If the pH level is too high, the following may result:
• Thesanitizerislesseffective.
• Scalewillformonthespashellsurfaceandtheequipment.
• Thewatermaybecomecloudy.
• Thefiltercartridgeporesmaybecomeobstructed.
If the pH is too high, it can be decreased by adding Hot Spring FreshWater pH/Alkalinity Down (sodium bisulfate) to the spa water.
NOTE: After adding pH/Alkalinity Up (sodium hydrogen carbonate) or pH/Alkalinity Down (sodium bisulfate), wait two hours
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
same time, you don’t want too high a sanitizer level, or it can irritate your skin, lungs, and eyes.
B. Always use EPA registered chemicals for spa sanitizer at recommended levels.
C. Watkins recommends only the following sanitizers:
• SodiumDichloro-s-Triazinetrione(sodiumdichlororchlorine),HotSpringFreshWater Concentrated Chlorinating Granules
• BrominatingConcentrate
™
(one step granular bromine)
• BaquaSpa
®
(please consult your BaquaSpa manual for instructions on the use of this product).
• HotSpringFreshWaterThree-PartBiguanideWaterCareProducts
THE WATKINS WATER MAINTENANCE QUICK REFERENCE GUIDE
Ideal Range (ppm) What Chemicals to Use
Steps Min. Max. To Raise To Lower
1 Total Alkalinity
40 120 Sodium Hydrogen
Carbonate, or
Sodium Bicarbonate
Sodium Bisulfate
2 Calcium Hardness 100 150 Calcium Hardness
Increaser
Use a mixture of
75% hard water
and 25% soft water
or use a Stain and
Scale Inhibitor
3 pH 7.4 7.6 Sodium Bisulfate
4 Sanitizer See section on Maintaining the Sanitizer Level
WARNING: DO NOT use tri-chlor chlorine, bromo-chloro-dimethyl-hydantoin (BCDMH), or any type of compressed bromine or
chlorine, acid or any type of sanitizer which is not recommended by Watkins Manufacturing Corporation.
ALKALINE
SPA
WATER
(SCALING
ZONE)
ADD pH
DECREASER
TO LOWER
pH
ADD pH
INCREASER
TO RAISE
pH
ACIDIC
SPA
WATER
(CORROSIVE
ZONE)
COMFORT
ZONE
IDEAL
Water Quality and Maintenance

HotSpring Aria Specifications

General

Water Care System	FreshWater® Salt System
Lighting System	LED lighting
Control System	Wireless remote control
Heater	4, 000w/230v
Pump	2 pumps
Filtration	Tri-X filter
Warranty	5 years equipment
Seating Capacity	5-6