Customer Service Team

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  • How can I insulate my unit for the cold weather?

    The key thing is to make sure the UV is never turned off. The unit could be wrapped in loft insulation and then a waterproof membrane if you live in a very cold area.

  • My evouv 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 ...

  • 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. Dir...

  • How do I change the bulb and quartz sleeve on an evoUV?

    Watch the step by step video below to learn how to change the bulb and quartz sleeve on an evoUV.

  • How do I set-up and install an evoUV?

    You can follow the step by step instructions located in the manual below or you can watch our YouTube video here: evoUV ManualWatch how to install an evoUV:

  • My UV Bulb is not lit on my evouv, what should I do?

    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...

  • Are evoUVs suitable for saltwater?

    Yes, all The evoUV clarifiers are suitable for saltwater, the Aquarium UV Sterilizer is made specifically for marine aquariums and is available in 15 and 25watt versions with additional fittings fo...

  • What replacement bulbs should I buy for my evouv?

    Evolution Aqua distribute and recommend Osram, a world leader in UVC technology. Obtain these from an authorised Evolution Aqua dealer.

  • Why is there no plug on my evouv?

    EvoUV adheres to UK pond equipment laws, and requires that it is wired into a safe, compliant, outdoor electrical system, ideally with an RCD cut-off. If you are unsure, consult a qualified electri...

  • Are UV rays harmful?

    Yes, never look at a lit bulb as it can damage eyes and skin. To check if a bulb is lit up, view the closed unit at night. UV protective fittings will glow in the dark, indicating that the bulb is ...