1.8 Definitions of Terms
|Onzen™||An all-natural, salt-water softening and maintenance system.|
|Onzen™ Output Electrode||
Three plate platinum-iridium Titanium electrode – equipped salt cell converts the saltwater
Note: When the Onzen System has activated the Output Electrode to generate
sanitizer, the electrode gives off smoke effect.
Onzen™ Output Electrode
|Modification status of the electrode fitted to the spa.|
|Calcium Hardness (CH)||
Calcium Hardness is a measure of the total amount of dissolved calcium salts in the water.
1. CH has a tendency to precipitate (fall out of suspension in high temperatures, where pH is above
2. High pH will cause calcium to precipitate. The problem with calcium falling out of suspension is that
Any natural corrosiveness in the water can be combated by maintaining a slightly
higher Total Alkalinity Level.
Total Alkalinity (TA)
A measure of how stable the pH is (a measure of the total levels of carbonates,
Note: Salt systems naturally drive pH levels to increase.
High TA can be lowered by adding Arctic Pure Salt Water Balance to the spa water.
Once the TA is Balanced, it normally remains stable, although some sanitizers, and the addition of more
|Potential Hydrogen (pH)||
The pH level is the measure of alkalinity.
pH is measured between 0 and 14 denoting various degrees of acidity or alkalinity. Neutral water has a
Water above 7.0 is alkaline and alkalinity increases as it approaches 14.
When the pH of water is 7.0 or below, chlorine will act primarily as a sanitizer. At this level, it is
Maintaining a Balanced pH level between 7.2pH and 7.6pH is extremely important for:
• Optimizing the effectiveness of the sanitizer.
• Maintaining water that is comfortable for the user.
• Preventing equipment deterioration.
• Note: Salt systems naturally drive pH levels to increase, strive to achieve a balanced pH level.
If the spa water’s pH level is too low, the following may result:
• The sanitizer will dissipate rapidly.
• The water may become irritation to spa users.
• The spa’s equipment may corrode reducing life expectancy.
Low pH can be raised by adding Arctic Pure, Adjust Up to the spa water.
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.
• High pH will cause calcium to precipitate (fall out of suspension).
• The water may become cloudy.
High pH can be lowered by adding Arctic Pure, Salt Water Balance to the spa water.
It is important to check the pH on a regular basis. The pH will be affected by the bather load, the
Loss of Effectiveness
based on pH Level
based on pH Level
Free Chlorine (FCL)
FCL is the active form of chlorine that actually kills bacteria and algae (It is a
Sanitizer is extremely important for killing algae, bacteria and viruses, and preventing unwanted
Always maintain the sanitizer level in your spa within the recommended range.
Also refer ORP
|Chlorine Residual||The actual level of chlorine in the water after the chlorine demand has been satisfied.|
Chemical used to kill bacteria.
Generic names: Chlorine, Bromine and Biguanide.
Arctic Pure, Boost
Adding Arctic Pure BOOST should be avoided unless the CI level is very low.
|Parts Per Million (ppm)||ppm: parts per million, a standard measure of chemical or mineral concentration.|
|Organic waste||Debris such as microorganisms, perspiration, urine, etc. which needs to be burned up or
“oxidized” regularly to prevent haze, algae, chloramines, etc.
|Shock||An oxidizer that “burns off” the organic wastes which cause cloudiness and algae. It is a
generic term for a chemical used to oxidize organic wastes. Arctic Pure, Boost.