TROUBLE SHOOTING
My pond water is not clear, is this due to the evoUV not working correctly?
Koi, goldfish and other pond inhabitants can cause murky water by stirring up the
bottom of the pond. This murky water should not be confused with suspended algae.
Always check all your pond filtration is working and is being maintained correctly
prior to checking the evoUV. Mechanical filtration is necessary.
If the UV bulb is not lit, then you need to investigate the power to your unit.
• Has your RCD tripped? If yes, check your wiring and reset.
• Examine the UV bulb for signs of failure, and replace if necessary.
• Is the UV bulb fitted correctly? Unscrew the end caps and ensure correct fitting as
per the instructions as described in this manual.
• Are the end caps dry? If not, allow to dry thoroughly. We recommend the use of a
hair-dryer for this.
The unit worked well when I first installed it but recently my pond has gradually
gone green again – what is wrong?
Quartz sleeve may have become dirty and requires cleaning. Also make sure you have
the right model for your pond size. Ensure your pond filtration is removing fish waste
and debris efficiently. Dirt in ponds will affect the efficiency of the evoUV. Check that
your pond water volume is pumping through the evoUV every 2 to 3 hours.
Only after you have carried out these checks should you contact your Evolution Aqua
dealer, who will then be able to advise you further.
The unit appears to be leaking from the end fittings?
This could possibly be caused by an incorrectly fitted, damaged or overtightened
O-Ring on the quartz sleeve. Please check the quartz sleeve O-Ring, reposition it or if
necessary replace it with a new one.
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