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FREQUENTLY ASKED QUESTIONS
How often should I change the UV bulb?
The evoUV bulb has an effective lifespan of 9000 hours, but it is an accepted practice to
replace a UV bulb once a year, at the start of every pond season.
How long after I install the unit will my pond become clear?
There are many factors which affect how long your evoUV will take to clear your pond,
such as the levels of nutrients available to the algae, the water temperature and the level
of sunlight. Assuming that you have installed the correct size unit, most ponds should clear
within 3-14 days. However, this may take up to six weeks in some instances.
Does the evoUV harm fish, plants or wildlife?
Ultraviolet bulbs leave no residues, and only affect the water pumped through the unit.
Unlike many chemical treatments, your evoUV will not harm plants and animals living in
the main pond.
Is the evoUV suitable for salt water use?
The evoUV is manufactured from materials that will not corrode in salt water, however the
stainless steel bracket will. Use alternative mounting means when using evoUV on saltwater
systems.
Can I use my evoUV if I am using any treatments for my fish?
Always check the manufacturer’s instructions before using any water treatment as they will
tell you whether it’s recommended that the evoUV can be switched off or on.
How long can I leave the unit running?
evoUVs have been designed and manufactured to the highest standards, and should be run
24 hours a day, every day, from mid March to early October, depending on the weather
conditions. If the unit is frost protected it may be left running throughout the winter.
Otherwise, the unit should be removed, drained and stored safely for
the winter.
Can I bury the unit underground?
No. The evoUV, although weatherproof, is not suitable for installing in any situation that
may be subject to immersion in water.
Can it be used with ozone?
Yes. The evoUV is safe to use with ozone units, however, the O-Rings on the hosetails are
not. When using ozone units please use rigid pipe.
When replacing the bulb I cannot locate it into the bulb socket at the opposite end of the
evoUV?
Please follow the procedure for cleaning / replacing the quartz sleeve. This will explain the
correct procedure for removing both end caps and sockets and explain the method for easy
installation.
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