Fixing a Leaking Stainless Steel Sight Glass Spigot

The Berkey stainless steel sight glass spigot is a wonderful new addition to the Berkey family of products, and it makes using your Berkey much easier. With it, you can immediately tell how much water you have available in your lower chamber, eliminating the need to lift up the upper chamber and looking inside.

However, sometimes the stainless steel sight glass spigot can have some issues. In these next few articles, we hope to address some easy troubleshooting tips to help you get things working properly.

If you are experiencing any leaking from the bottom of the stainless steel sleeve (the tube), you will want to tighten the top cap. Yes, this may seem backwards, but that’s how the physics works. Simply tighten that down a bit more by hand only. Do not use tools to tighten this down.

If that does not stop the leak, then try these next steps:

  • Remove the top cap and check to make sure the silicone washer is in place.
  • Reinstall the top cap and check for leaks.
  • If the leak persists:
    • Remove the top cap and slide the glass tube up and out of the stainless steel sleeve.
    • Flip the glass tube upside down and reinstall.
    • Reinstall the top cap.
    • Tighten and check for leaks.

See if that solves things. If not, we have a few more tips and tricks to try, but those will be coming soon. Ultimately, if you cannot get something working, the manufacturer can swap things out when still under warranty. You can submit a request for a swapout by filling out the following form:

As always, you can Contact Us if you need help with anything.

6 thoughts on “Fixing a Leaking Stainless Steel Sight Glass Spigot”

  1. Generally, this will only occur if you overfill your Berkey. If the bottom chamber is full and you continue to add water to the upper chamber, it will continue to filter down. As it does so, once the sight glass spigot shows full, it will continue to flow out the top of the sight glass spigot. If you had a normal spigot installed, it would actually leak out in between the two chambers. The Berkey is not designed to be a sealed system, so this overflow is not a flaw. You just have to remember to never add more water to the top than the lower chamber can receive. I hope that helps!

  2. Just assembled mine. The leak is at the bottom of glass view. What to do?
    I can send a pic through email

  3. Have you had a chance to try the steps in the article? And feel free to send over photos, and we would be happy to help diagnose the issue and hopefully get it solved!

  4. The cap was tight, but after taking it apart and putting it back together again, I noticed the original cause of the issue – the silicon washer is ‘stepped’ … when it was assembled at the factory, the glass tube wasn’t seated all the way down – it was up on the ‘step’ – that is why it leaked. When I reassembled it, I wiggled the tube and felt it drop into place.

    Perhaps it was a factory oversight, or perhaps the factory intended the buyer to take it apart to install the little blue float ball, after which things would get jostled into position – either way, it all worked out, and hopefully, this observation may help someone who has already tried just ‘tightening’ the cap … try taking the cap off, slide the tube out and then back in, making sure it is centred and not cocked to one side.


  5. John,

    Took your advice after having the same issues. Fingers crossed that third times a charm.

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