If using only 5 to 6 months a year, replace bulb every two years.
The bulb may continue to glow after 11 months of use, but its effectiveness has been greatly diminished.
Replacement of Quartz Sleeves
Quartz glass tubes do not need to be replaced unless they are damaged.
Please handle with care, and do not leave outside in winter, since they are fragile.
General Information
How the UV Clarifier Works
The clarifier works by exposing single-celled algae to very high levels of ultraviolet (UV) light as the pond
water containing them is pumped through the unit.
The algae die and clump together, making them easier for the filter to remove.
While the UV clarifier will destroy the algae, water clarity is also dependent on adequate pond filtration
to trap and remove the dead algae.
Dead algae may clump, sink and accumulate at the bottom of the pond. It can be removed with a fine
mesh net.
For most ponds with normal levels of green water, the cleaning process should take about one week;
however, with thicker algal blooms this may take 2-3 weeks.
The clarifying process can be made more efficient by regularly carrying out partial water changes (up to
25% of pond volume).
Always add a dechlorinator water treatment when adding tap water to a pond.
Turn unit off when treating the pond with any fish medication or remedy.
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