Learn how to set up a Boroux water filter easily at home to start enjoying purified water.

We have a Boroux water system, and it is such an essential part of our healthy lifestyle and makes a huge difference in the taste of our water. The clean filtered water that we enjoy from this system is perfect for making water kefir, fermented lemonade, fermented pickles and for feeding my sourdough starter with water I know I can trust.
Today, we are continuing in our Boroux water filter system education series by showing you how to set it up.
If you just purchased one and haven’t set it up yet, this post will be perfect for you.
Tips For Setting Up Your Boroux Water System
- Wash the stainless steel canisters before putting it all together.
- Prime the Boroux filters before installing them, or your water will filter extremely slow.
How to Set Up a Boroux Water Filter

Step 1: Install The Hole Plugs

- Locate the two two hole plugs. There will be two silicone washers and a wingnut attached.
- Unscrew the wing nut and the washers from the hole plug.
- Place one of the washers on the inside of the chamber on top of the hole, and the other washer on the bottom of the chamber on the outside of the hole.
- Thread the hole plug through the hole and screw the wingnut into the base of the plug.
- Tighten the hole plug in place until it feels secure.
- Repeat these steps with the second hole plug.
Step 2: Put On The Silicone Ring
- Take the silicone ring and place it on the counter.
- Place the bottom Boroux canister on top of the silicone ring, lining the spigot hole up with the notch that is in the ring.
- The silicone ring helps support the Boroux and keep it from sliding. This is great if you have kids, so they don’t easily pull it down.
Step 3: Install The Spigot
- Remove the wingnut, the stainless steel washers, and the silicone washers from the spigot.
- Add one of the stainless steel washers onto the spigot, making sure the beveled edge is facing away from the lower chamber.
- Add a silicone washer next.
- Place the spigot into the opening of the chamber.
- Thread the other silicone washer onto the spigot from the inside of the chamber.
- Thread the other stainless steel washer next with the beveled edge facing away from the chamber.
- Place the wingnut onto the spigot and hand tighten everything into place. Be sure that the metal washer on the outside is not pinching the silicone base ring.
- Move the handle of the spigot to the closed position by pushing it towards the lower chamber.
Step 4: Install The Filters
- The first thing you will need to do is prime your Boroux filters.
- Once you have finished the priming process, take the included rubber washer and place thread it onto the stem of the Boroux foundation filter. Repeat this for the other filter.
- Insert the stems of the pair of filters into the holes in the bottom of the inside of the upper chamber.
- From the outside of the chamber, attach a wingnut onto each filter stem and tighten it into place. Be sure to not over-tighten them.
Step 5: Test The Boroux Water Filter System
- Add water to the upper chamber, and check to make sure the water is coming out where it is supposed to and has a good seal. You want to make sure it is coming through the filters, and not leaking through any of the nuts or the plugged holes.
- Hold it up and check to see where it is dripping through. I can see that mine are coming through the filters and dripping through the filter tubes.
- If they are leaking through spots they are not supposed to, empty the water, and tighten the element nuts. Test again.
Step 6: Final Steps
- Set the top chamber on top of the bottom chamber, fill completely with water, and place the lid on top.
- Let the water filter out a few times before drinking it, just to make sure any sediment in the filter comes out.
- You are all set! Enjoy your delicious, filtered water.
If you have had your filters awhile and you want to make sure they are still filtering properly, check out how to do the Boroux red dye test here.
Boroux Filter FAQs
It does not need to be cleaned super often. If you want to learn how to clean yours, learn how to clean the Boroux filter in this post.
Water that is unfiltered can have all kinds of harmful contaminants from chlorine and heavy metals to lead and PFAs. These are all things that should be avoided in your drinking water and can affect your long-term health.
















Thank you for this! Now I can get mine fully running. I have had a hard time figuring out how to finish putting mine together and it keeps leaking around the plastic spigot. I’m about to purchase the metal one to see if it helps!