
www.delozone.com 1-800-676-1335
Commonly Asked Questions
Why don’t we need an air dryer with the Eclipse?
The Eclipse series was designed for residential pools (not com-
mercial pools). Therefore, the concentrations of ozone necessary to
produce a healthy bathing environment are relatively small. Air
dryers or oxygen concentrators are used to remove the moisture
(air dryer) and nitrogen (oxygen concentrator), thus bringing the
concentration of ozone up. If we used an air dryer or oxygen con-
centrator on our Eclipse line, it would be too costly for residential
applications, plus it would provide you with more ozone than neces-
sary. Another reason to use an air dryer or oxygen concentrator
is to remove the nitrogen and moisture which can combine causing
nitric acid to form; nitric acid is typically corrosive to the equip-
ment. However, the Eclipse corona discharge electrodes produce
very little nitric acid and are designed to be resistant to nitric acid.
Why does humidity, rain, etc. cause the ozone
concentration to drop?
Humidity in the air will slightly inhibit ozone production. Ozone
is created when a single oxygen atom (O
1
) connects with an oxygen
molecule (O
2
) to create ozone (O
3
). When there is moisture in
the air (H
2
O), the single oxygen atom is more attracted to it than
an oxygen molecule (O
2
). As a result, a small amount of H
2
O
2
(hydrogen peroxide) is created. In this case, an air dryer or oxygen
concentrator would reduce the moisture in the air, therefore creat-
ing an environment where more ozone can be created. However,
using an air dryer or oxygen concentrator will signicantly increase
the cost and maintenance of a residential pool ozonator.
How will ozone affect vinyl liners and/or pool/spa covers?
Vinyl liners and pool/spa covers are very resistant to ozone. Data
from ongoing research suggests that there are no known disadvan-
tages to using ozone in a vinyl lined pool. We do not have negative
feedback with regard to swimming pool covers, either. Studies
found that the UV rays from the sun would break down the pool
cover before the ozone would even begin to discolor the cover. Spa
covers, however, tend to break down quicker than pool covers. We
have been told that spa covers can be discolored by ozone, but over
a ‘long period of time’. If you have had experience to the contrary
on any of the above topics, please contact DEL Ozone with your
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