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FAQ Search Results

My UV was working but my pond has gradually been turning green, why?
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...
Do I need to turn evoUV Steriliser off if combining with medications?
Yes, this is because the Ultra Violet light may degrade the medication being administered to
the water. Read the instructions provided with the medication and take the manufacturer’s
advice.
What does an evoUV do?
UV Clarifiers clear green water which is caused by single celled green algae and prevent it from returning.
Where do I install the evoUV?
Usually the UVC will be the first piece of equipment after the circulation pump. On a pump fed filtration system this means the UVC will be installed before the pond filter, and on a gravity fed filter after the circulation pump that returns the water...
What do I need to reduce a 110W evouv from 2" to 1.5"
If you intend to use flexible hose, you would need:

2 x 2-1.5’’ reducing bushes – EA Code: R81-063 2 x 1.5’’ pressure to waste sleeves – EA Code: ...
How do I change the T8 Sockets and Black End Caps?
Watch the step by step video below to learn how to change the T8 Sockets and Black End Caps on an evoUV.

The Same process would follow for both old and new versions of our evoUV's
How do increase my evoUV from 1.5" to 2" pressure pipe using straight eazy connectors?
How to increase from 1.5" to 2" pressure pipe using straight eazy connectors on an evoUV
How do I setup a 110W evoUV using 2" Double Union Ball Valves?
How to setup a 110W evoUV using 2" Double Union Ball Valves
How do I replace the ballast box on a 110W evoUV?
How to replace the ballast box on a 110W evoUV
How do I setup a 110W evoUV using a Flexi Pipe Kit?
How to setup a 110W evoUV using a Flexi Pipe Kit
How do I use single unions for pressure pipe on a smaller evoUV?
How to use single unions for pressure pipe on an evoUV
Are UV rays harmful?
What is an evouv quartz sleeve?
It’s a tube that looks like it’s made of glass, which separates the pond water running through the unit, from the bulb. It’s very delicate, like glass, and should be handled with extreme care. Quartz sleeves should be cleaned regularly to ensure that...
My green water isn’t clearing. Why?
Check that bulb is connected properly, and that the unit is wired in correctly, and on. UV should be on for 24 hours per day. Consult the recommended flow rates on the packaging. If water flow through the unit is too great, the contact time with the ...
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...
What size evoUV do I need for my pond?
For help choosing the correct UV that is suitable for your pond. Please see the table below.

How do I change the ballast box on a 30W evoUV and larger?
To learn how to change the ballast box, you can use the manual or watch the video tutorial below.
How do I use single unions for pressure pipe on an evoUV?
Learn how to use single unions for pressure pipe on an evoUV.
How do I setup a smaller evoUV using 2" Double Union Ball Valves?
How to setup a smaller evoUV using Double Union Ball Valves
What is the length of the power cable on an evoUV?
The length of the power cable for UK models is 2.2metres.
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