UV lamp x4

How do I sterilise my new system?

When we’re dealing with UV it’s important to recognise that it is a ‘point of use’ technology. If you put in a UV unit and you have a mouldy tap, then you’re still going to have bugs and bacteria in the water coming out of that tap. With that in mind I’m going to explain how to sanitise your existing pipework so that the UV unit can give the best results possible. Here we go:

Things you’ll need before we start – The kit to take your filter housing off, You UV unit to be installed (but turned off), Bleach or Milton’s (I’ll explain later), around an hour of time.

  1. Isolate your water supply. We’re taking the filter bowl off soon and you don’t want it pouring water all over you.
  2. Take the filter bowl off and pour a cup of bleach or Milton’s in. Put the filter bowl back on.
  3. Turn your water back on.
  4. Open the tap for the pipework you’re treating.
  5. Once the sanitiser has worked through the pipe. Turn the tap off and leave for 20-30 mins.
  6. Repeat steps 2-4 for every outlet that the UV unit will be treating. This could be a tap, shower or toilet.
  7. Switch the UV unit on.
  8. Open the taps again to let all of the bleach or Milton’s out of the supply.

The recommendation of bleach or Milton’s will vary from company to company. We have no preference so will let you choose yourself. Milton’s is safe to consume but very difficult to smell. That’s the only way you will be able to tell when it has worked it’s way through your pipework. Bleach is easy to smell but not great to drink. If using bleach, you’ll turn your tap on until you can smell bleach. Turn it off and leave it for 30 mins. Then turn the tap back on and leave it running until you cant smell bleach any more. It’s the same process with Milton’s but involves guessing instead of smelling.


I hope that helps.

You might also be interested in these articles

Here are a selection of relevant blog posts.

Safe spraying and irrigating, even during periods of drought

Safe spraying and irrigating, even during periods of drought

Van Remmen UV Technology and UVO3 help British agricultural companies produce safe food. With the Agri systems, they meet increasingly strict requirements, even with increasing…

What applications can UV disinfection be used for?

What applications can UV disinfection be used for?

UV disinfection has a wide range of applications, and its benefits have been utilised in various industries. UVO3 explore the applications of UV disinfection in…

UVC technology in food processing

UVC technology in food processing

This article explores the potential impact on product safety and quality and how UV technology is a safe and cost-effective way to disinfect food and…

Do I need an annual service contract?

Do I need an annual service contract?

In the world of water treatment technology, the question of whether an annual service contract is worth it is a common one.