Specifications

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WATER QUALITY AND MAINTENANCE
Maintaining Sanitizer Level
• 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.
• Always maintain the sanitizer level in your spa at the recommended level for each type of sanitizer.
Ozone
Hydro Spa’s Ozonation System drastically reduces the use of chemicals in the water. This aids in maintenance because
the amount of harsh chemicals and frequency with which they are used is lowered.
Water Terminology:
Bromamines: Compounds formed when bromine combines with nitrogen from body oils, perspiration, etc. Unlike
chloramines, bromamines have no pungent odor, and are effective sanitizers.
Bromine: A halogen sanitizer (in the same chemical family as chlorine). Bromine is commonly used in stick, tablet, or
granular form.
Calcium Hardness: The amount of dissolved calcium in the spa water. This should be approximately 150-220 ppm. High
levels of calcium can cause cloudy water and scaling. Low levels can cause harm to the spa equipment.
Chloramines: Compounds formed when chlorine combines with nitrogen from body oils, urine, perspiration, etc.
Chloramines can cause eye irritation as well as having a strong odor. Unlike bromamines, chloramines are weaker, slower
sanitizers.
Chlorine: An efficient sanitizing chemical for spas.
Chlorine (or Bromine) Residual: The amount of chlorine or bromine remaining after chlorine or bromine demand has been
satisfied. The residual is therefore the amount of sanitizer which is chemically available to kill bacteria, virii and algae.
Corrosion: The gradual wearing away of metal spa parts, usually caused by chemical action. Generally, corrosion is
caused by low pH or by water with levels of TA, CH, pH or sanitizer which are outside the recommended ranges.
DPD: The preferred reagent used in test kits to measure the Free Available Chlorine.
Halogen: Any one of these five elements: fluorine, chlorine, bromine, iodine, and astatine.
MPS: Monopersulfate is the non-chlorine oxidizer used with the purification system.
Nitric Acid: The formulation of nitric acid, a highly corrosive chemical, is a byproduct of the ozone generating process.
Nitric acid is produced in very small quantities and is readily dissolved in the water stream with ozone.
Oxidizer: The use of an oxidizing chemical is to prevent the buildup of contaminants, maximize sanitizer efficiency,
minimize combined chlorine and improve water clarity.
Ozone: Ozone is a powerful oxidizing agent which is produced in nature and artificially by man. Ozone forms no
byproducts of chloramines (ozone actually oxidizes chloramines) and will not alter the water’s pH.
Pathogen: A microorganism such as bacterium that cause disease.
pH: The measure of the spa water’s acidity and alkalinity. The recommended pH for the spa water is 7.4 to 7.6. Below 7.0
(considered neutral), the spa water is too acidic and can damage the heating system. Above 7.8, the water is too alkaline
and can result in cloudy water, and scale formation on the shell and heater.