ACE Salt Water Sanitizing System Page 11
• Metal Treatment. If metals are present be sure to discuss this with your Hot Spring
dealer. Use a Vanishing Act and Stain and Scale control for 24 hours before adding
oxidizer from granular chlorine, ozone, or turning the ACE® system on. Excessive
use of phosphate anti-scalant will promote high phosphate levels which can cause
scale and weaken chlorine output.
• Mixed Oxidants. To clean the water, the ACE salt water sanitizing system generates
a variety of mixed oxidants, in addition to chlorine. The chlorine reading on the test
strip may not be indicative of total oxidizer level.
• Ozone. The ACE system should be capable of maintaining a sufficient sanitizer level,
and adding ozone is not recommended.
• Phosphates. High levels of phosphates (above 300 ppb) may cause reduced
sanitizer output, ask your local Hot Spring ® dealer to help you test for phosphates.
• Salt level. Salt is not consumed during sanitizer production. The salt level is only re-
duced by adding water to the spa. Using the spa and adding chemicals will increase
the salt level over time.
• Salt buildup. Periodically hose off your spa and the deck or concrete surrounding
your spa after use to prevent salt buildup that can occur from splash-out.
• Summer Timer. The Summer Timer will decrease the chlorine generation time of
the ACE system. If the spa’s Summer Timer is activated, the Output will most likely
need to be increased to compensate. If chlorine level is low, adjust Output up by
one each day until 1-5 ppm is maintained. Add granular chlorine to compensate.
• Water Changes. Because the ACE salt water sanitizing system reduces the amount
of chemicals added to the spa water, it is possible to significantly extend the life of
the water. Test your water regularly to ensure safety.
Important Additional Information
WARNING: Operating ACE without water flow through the cell can cause a build up of
flammable gas.
WARNING: To reduce the risk of injury, do not permit children to operate this device.
WARNING: Spa usage and higher temperatures may require higher chlorine output to
maintain proper free available chlorine residuals.
WARNING: Maintaining high salt and chlorine levels above recommended range can
contribute to corrosion of pool or spa equipment.
Check the expiration date of test strips as test results may be inaccurate if used after
that date.
When replacing the cell, only use replacement cells having a label the clearly states that
it is a replacement cell for the chlorine generating ACE device.
Follow all aspects of the local and National Electrical Code(s) when installing ACE.
Maximum spa water usage temperature is 104º F (40º C). Bathing in spa water at maxi-
mum temperature should not exceed 15 minutes.