Instruction manual

18
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 the plants and
animals living in the water.
Is the evoUV suitable for salt water use?
The evoUV is manufactured from materials that will not corrode in salt water and it
is safe to use your evoUV in marine 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 on page 15.
This will explain the correct procedure for removing both end caps and sockets and
explain the method for easy installation.