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Sanitizers
Common name
Chlorine
Bromine
Usual chemical name sodium dichlor sodium bromide
Common brand names
Both chlorine and bromine are available under numerous brand names
Shock
Common name
MPS
Dichlor
Usual chemical name monopersulphate sodium dichlor
Common brand names
MPS Shock, Oxy-Spa, SeaKlear
Dichlor Shock
Note: Dichlor (chlorine) is both a sanitizer and a shock. Monopersulphate (MPS), when used as a shock, can be purchased alone as non-chlorinated shock or combined with dichlor, which makes it significantly more effective than MPS alone.
Other chemical additives
Common name
Stain and scale inhibitor
Foam inhibitor
Clarifier
Usual chemical name Common brand names
These are usually proprietary chemical formulations and cannot be purchased as a single generic chemical.
Metal Stain Gone, Scale Inhibitor, Stain and
Scale Preventer, Stain and Scale Defense
Foam Gone, Foam Down, Defoamer
Water Brite, Spa Bright, Water Clarifier, Clear
Water, Natural Clarifier, Brite & Clear
Do NOT use these in your spa:
• Sodium hypoclorite (household bleach)
• Trichlor
• Chemical floaters
• Bromine tablets
• Muriatic acid
• Borax or boric acid in any form, including brand names such as 20 Mule Team Borax or generic as sodium tetraborate
• Cyanuric acid, also called sun protector or chlorine protector
Common Water Chemistry Questions
Question: Why is the use a floater not recommended to sanitize my spa water?
Answer: We do not recommend the use of a floater for three reasons:
• The floater is unable to control the rate at which the sanitizer is dissolved into the water. When a floater is first placed in a spa, the sanitizer level can be extremely high. High sanitizer levels can chemically burn or discolor the spa’s shell or the underside of the cover. Then, after a period of time, the sanitizer level dispensed by the floater will fall to near zero. A low sanitizer level will allow viruses, bacteria or algae to grow.
• Floaters tend to stay in one area of the spa most of the time, causing this area to be exposed to extreme sanitizer levels.
• The floater may allow pieces of the highly concentrated sanitizer to fall out and settle on the floor or seat of the spa shell. These pieces of sanitizer will chemically burn (blister) the spa shell. Although your spa shell is specifically designed to resist the effects of spa chemicals, no spa surface can withstand this type of highly concentrated chemical. Remember, chemical abuse is specifically not covered under the terms of the warranty.
www.calspas.com
2021 Portable Spa
LTR20211035, Rev. A
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