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the filters, simply move the filters from one standpipe to another. Typically, the filter on the circulation system (with grey filter cap, standpipe
and wallfitting) is subject to the greatest load. By rotating the filters, the load placed on the individual filter by the circulation system is greatly
reduced. This extends the life of the filters.
6. Remove the existing FreshWater
Ag
+
® silver ion purifier.
7. Install the new FreshWater
Ag
+
silver ion purifier into the filter standpipe. Do not force the FreshWater
Ag
+
silver ion purifier down into the filter
standpipe.
8. Reinstall the cleaned filter cartridges.
9. Replace and secure the grey filter cap.
10. Replace the filter compartment cover.
11. Fold the cover back into place.
WARNING: Never use the spa with the filter cartridges or filter standpipes removed!
SILVER IONS QUESTIONS AND ANSWERS
Question: How are the silver ions actually added to the water?
Answer: The silver ion cartridge contains ceramic beads that are infused with silver. By placing the cartridge in the circulation pump filter
standpipe, it is subjected to the continuous flow of water created by the pump’s 24 hour circulation. The flowing water, through a chemical
erosion process, carries with it the silver ions necessary to add a sanitizing residual to the spa water.
Question: What happens if I do not add the weekly shock treatment?
Answer: The contaminants in the water may coat the silver ion cartridge’s ceramic beads, blocking the silver ions’ release into the water. When
this occurs, there will be no residual of silver ions present in the water, eliminating them from the sanitizing process.
Question: How often should the FreshWater
Ag
+
silver ion purifier cartridge be replaced?
Answer: The cartridge must be replaced every four months. Please refer to the instructions provided with each FreshWater
Ag
+
silver ion purifier
cartridge.
Question: Can I use the FreshWater
®
III ozone system in addition to the silver ion system?
Answer: Yes. In fact, it is preferred! The use of the FreshWater III ozone system will enhance the performance of the silver ions and may
substantially reduce the need for supplemental chemical treatments when the spa is not in use.
Question: Why can’t I use bromine or biguanides instead of MPS or chlorine?
Answer: Bromine and biguanides will chemically react with the sanitizing action of the silver ions. This will eliminate their beneficial sanitizing effect.
DOS AND DON’TS
• DO check your MPS or dichlor chemical level prior to each use.
• DO shock the spa weekly (use either MPS or sodium dichlor).
• DO change the FreshWater
Ag
+
silver ion purifier every four months.
• DO test Total Alkalinity and pH weekly.
• DO use MPS for spas only, such as Hot Spring
®
MPS chlorine-free oxidizer.
• DO store all chemicals in a tightly sealed container in a cool, dry place.
• DON’T use bromine, sodium bromide or biguanides. These are an active sanitizer and will combine with the silver ions to inactivate them.
• DON’T use a water clarifier. Clarifiers will cause the spa water to become cloudy.
CHLORINE (SODIUM DICHLOR)
A. Sanitizing chemicals, such as chlorine, are oxidants that kill bacteria and viruses in the water. The
Free Available Chlorine (FAC) is a measure of the amount of unused chlorine available to sanitize
the spa. The recommended FAC for your spa water is 3.0-5.0 ppm.
B. Watkins Manufacturing Corporation recommends the use of HotSpring FreshWater
®
Concentrated Chlorinating Granuals (sodium dichlor) for sanitizing the water. Sodium dichlor is
preferred because it is totally soluble, dissolves quickly and is nearly pH neutral.
C. Maintaining the proper level of chlorine during use is extremely important.
D. If the FAC is too low, bacteria and viruses can grow rapidly in the warm water. Increase the FAC
by adding granulated sodium dichlor.
E. If the FAC is too high, the water can cause discomfort to the user’s eyes, lungs and skin. Simply
allow some time to pass. The FAC level will naturally drop over time.
Water Quality and Maintenance
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