Frequently Asked Questions

Questions on your mind? Answers to common inquiries about BOROUX.

↓ BOROUX foundation filter

How do the BOROUX foundation filters work?

BOROUX foundation filters work by absorbing and trapping contaminant molecules. The carbon attracts and absorbs molecules with a certain chemical charge. They stick to the carbon, like how a magnet attracts metal. The tiny pores of the carbon block are so small that they physically block and trap tiny particles. It's similar to a sieve or strainer.

What contaminants are filtered by the BOROUX foundation filter?

See the full list and the latest contaminant test results. Testing is ongoing and data is updated regularly.
The BOROUX foundation filter is not intended to filter microorganisms.

How long do the BOROUX foundation filters last?

The filter lifespan will vary depending on the source water and contamination level. The recommendation for when to replace depends on several factors. For example, for filtering chlorine, the filters last for 12,000 gallons per pair. See recommendations for other contaminants here.

What are the BOROUX foundation filters made of?

A specialized blend of activated carbon.

Where are the BOROUX foundation filters made?

Proudly crafted in the USA! The plastic Stem Saver™ is sourced from China.

Are the BOROUX foundation filters compatible with other gravity-fed systems?

Yes. The BOROUX foundation filter was designed to fit in most gravity-fed systems that hold nine-inch filters. The filter stem fits 3/8 inch holes.

Does the BOROUX foundation filter reduce fluoride?

No. However, they are compatible with post-style fluoride filters.
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Are the BOROUX foundation filters NSF certified?

Not yet. BOROUX products are currently undergoing testing to NSF standards to achieve certification. In the interim, actual test results can be found here.

↓ BOROUX legacy system

How does the BOROUX legacy system work?

The BOROUX legacy system is a gravity-fed water filter. It has one upper chamber and one lower chamber. The foundation filters are installed in the upper chamber. Water is poured into the upper chamber, and then gravity pulls the water down through the BOROUX foundation filters and into the lower chamber. Drinking water can then be poured out from a spigot located at the base of the lower chamber. 

What's different and better about the BOROUX legacy water filters?
  • Reliable performance from the included BOROUX foundation filters. Every system comes standard with two filters assuring peace of mind through trusted technology, backed by real-world, verified testing. 
  • Simple design. Sometimes the best innovation and design philosophy is to simplify. The legacy system boasts, seamless one-piece 304 AISI stainless steel chambers with built-in vents to prevent airlocks; a domed low-profile, single-piece lid for a sleeker look and less parts to prevent rusting; and a stainless steel spigot with a ceramic valve for smooth and fast flow.  
  • You’re getting more than a product, you’re getting an entire team dedicated to supporting your personalized water wellness journey. We’re here to help you through every step of your journey and have tools in place to best serve your water filtering needs.

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What are the materials made of?
  • Chambers and spigot is 304 AISI stainless steel, which is food-grade quality and highly corrosion-resistant. 
  • foundation filters are activated carbon blocks 
  • Stem Saver, hole plugs are BPA-free food-grade plastic 
  • base ring and washers are silicone 
Where is the BOROUX legacy system made? 

The legacy system is designed in Colorado and made in China at a highly reputable, technologically-advanced factory.

Can the BOROUX legacy system rust?

Yes, stainless steel can rust, although it is less likely to do so compared to other types of steel. Stainless steel contains chromium, which forms a protective oxide layer on its surface that helps prevent corrosion. However, if this protective layer is damaged or if the stainless steel is exposed to harsh environmental conditions, such as high levels of humidity or chloride-containing substances, it can still rust. Regular maintenance and proper care can help prevent rusting in stainless steel.

How and when to do maintenace on BOROUX legacy system?

Clean the stainless steel chambers and spigot monthly with dish soap and warm water.

Clean foundation filters every 3-6 month with water and an abrasive sponge.

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↓ Warranty and Returns

What is the 60-day risk-free trial?

BOROUX products come with a 60-day risk free trial. If for any reason, within 60 days of purchase, you are not satisfied with the filters, system, or drinkware you can return them for a full refund.

What is the warranty policy?

The BOROUX foundation filters are warranted to be free from defects in material and workmanship for one year from the date of purchase. This warranty does not cover failures resulting from abuse, misuse, alteration, damage, or failure to follow installations and use instructions. If the product is defective, we will replace the product. Proof of purchase, description of product, and alleged defect must be provided for a warranty claim.

The BOROUX legacy system (this includes: chambers, spigot, washers, hole plugs, or wingnuts) is warranted to be free from defects in material and workmanship for a lifetime. There is no need to register; to file a warranty claim, please contact customer service with your order number.

The lifetime warranty does not cover damage caused by carelessness, accidents, abuse, or unintended use of the system. This warranty does not cover filters.

Why doesn't BOROUX ship to California or Iowa?

State laws prohibit the sale of consumer water filter products without certain certifications. We are currently working on obtaining those certifications which would then allow us to ship to California and Iowa.

↓ Troubleshooting

My filter won't prime

If your filter won't prime, try soaking your filter overnight and/or scrubbing your filter.

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My filter won't pass the red dye test

A failed red dye test could indicate incorrect installation. Double check the placement of wingnuts and washers.

My upper chamber won't empty completely

It's normal for 1-2 inches of water to remain in the upper chamber. Because the legacy system is a gravity-fed water filter, it relies on the pressure and weight of water to push down and through the filters. As it empties into the lower chamber, there's less weight to push it down. Also, water cannot pass through the plastic Stem Saver.

There's white stuff on my filter

White residue is mineral buildup. It is harmless. If visible on your black filter, run under water and wipe off. If visible on your chamber or spigot, use a mixture of half water and half vinegar to scrub off. You can soak the spigot in this mixture.

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My system is leaking

If your system is leaking at the spigot, check for correct installation.

If your system is leaking where the two chambers meet, you're overfilling your system. Only fill the top chamber if the lower chamber is empty.

We're here to help!

Still having trouble? Didn't see your question in the list? Contact us! We're your partner in personalized water wellness.

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