Frequently Asked Questions
Questions on your mind?
Find answers about BOROUX products.
BOROUX Foundation Filter
How do the BOROUX Foundation Filters work?
BOROUX Foundation Filters absorb and block contaminants. The filters are made of activated carbon which 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 Filters?
Over 80 contaminants are filtered, including but not limited to; heavy metals, pharmaceuticals, pesticides, forever chemicals, and microplastics.
How long do the BOROUX Foundation Filters last?
We recommend replacing a pair of BOROUX Foundation Filters every 12 months. Filter lifespan will vary depending on source water quality and usage. A pair of filters is warrantied and guaranteed to effectively filter for 12 months.
What are the BOROUX Foundation Filters made of?
A specialized blend of activated carbon. The base and stem is made of BPA-free, food-grade plastic.
Where are the BOROUX Foundation Filters made?
Proudly crafted in the USA!
Are the BOROUX Foundation Filters compatible with other gravity-fed systems?
Yes. The BOROUX Foundation Filter is compatible most gravity-fed systems.
Does the BOROUX Foundation Filter reduce fluoride?
No. However, the BOROUX Proactive Filters do filter fluoride!
Are the BOROUX Foundation Filters NSF certified?
The BOROUX Foundation Filters are certified to NSF/ANSI 42, NSF/ANSI/CAN 401, and NSF/ANSI/CAN 372 by the Water Quality Association (WQA).
BOROUX Proactive Fluoride Filter
Why does my water have a slight taste when first using the BOROUX Proactive Fluoride Filters?
A subtle earthy or mineral-like taste may occur when first using new BOROUX Proactive Fluoride Filters. This is completely normal and temporary, and caused by the filter media not being fully flushed or primed.
To eliminate the "off" taste:
Prime each filter for at least 10 minutes using the blue silicone priming tool with higher water pressure.
Or
Try using the Automatic Filter Primer with hot water (~100ºF).
Are BOROUX Proactive Fluoride Filters compatible with my existing Berkey® system and filters?
Yes, BOROUX Proactive Fluoride Filters are compatible with Berkey® systems and attach to the stems of Black Berkey® Filters.
How do the BOROUX Proactive Filters work?
The BOROUX Proactive Filter threads onto and attaches to the stem of the BOROUX Foundation Filter. The water passes through the BOROUX Foundation Filter and into the center of the BOROUX Proactive Filter. The inner layer is made of high-efficiency granulated carbon. Then, the water filters through the proprietary nano-carbon outer layer. With the patent-pending Upflow Design of the stainless steel shell, the water stays in contact with the outer layer for a prolonged period of time, providing superior filtration. The filtered water exits the top of the shell through the outlet holes. This allows for a nearly uniform use of the entire surface of the fluoride filters, from bottom to top.
Do the Proactive Filters remove arsenic?
We have not yet tested for arsenic.
How long do the BOROUX Proactive Filters last?
It's recommend to replace filters at 1,000 gallons, which is approximately 6-12 months. The filter lifespan will vary depending on the source water, and usage.
What are the BOROUX Proactive Filters made of?
The inner layer is granulated carbon--small, loose granules of a mix of different carbons packed into the center of the cylinder filter. The outer layer of the filter is a nano-carbon. This blend of specialized carbon is molded into the cylindrical shape.
The shell is 304-grade stainless steel.
Where are the BOROUX Proactive Filters made?
Proudly crafted in the USA!
Do I need one BOROUX Proactive Fluoride Filter for each Foundation Filter?
Yes, it's a one-to-one ratio. For every BOROUX Proactive Fluoride Filter, there should be a BOROUX Foundation Filter.
Do I need the stainless steel shell for the BOROUX Proactive Fluoride Filter?
Yes, the stainless steel shell is essential for proper performance. It critical for the Upflow Design, which directs water from the bottom up—slowing the flow rate and increasing contact time between water and filtration media. This optimized interaction enhances fluoride reduction and overall effectiveness.
Why can’t I purchase BOROUX Proactive Fluoride Filters in California or Iowa?
BOROUX Proactive Fluoride Filters are not available to be sold in California or Iowa due to state-specific regulations and compliance requirements. These states have unique laws regarding the sale of water filtration products that make certain contaminant reduction claims.
We're actively working to meet the necessary certification standards so we can make these filters available to residents in both states in the future.
BOROUX Legacy Systems
3-gallon and 1.8-gallon Water Filter Systems
How does the BOROUX Legacy Water Filter system work?
The BOROUX Legacy systems are a gravity-fed type of water filter system. There is an upper chamber and a lower chamber. The BOROUX Foundation Filters are installed in the upper chamber. The optional BOROUX Proactive Filters attach the stem of Foundation Filters and hang in the lower 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?
- NSF certified by the Water Quality Association with extensive and accurate testing
- Pressed stainless steel chambers and one-piece lid to eliminate rust points from welded seams
- Stainless steel spigot comes standard
- Best customer care with the longest trial period, 101-days, and a lifetime warranty
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 and hole plugs are BPA-free food-grade plastic
- Base ring and washers are silicone
Where is the BOROUX Legacy systems made?
All BOROUX products are designed in Colorado. The stainless steel elements are sourced from a highly reputable, technologically-advanced factory in China.
Can the BOROUX Legacy systems 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.
What kind of maintenance is needed for the BOROUX Legacy systems?
Clean the stainless steel parts and pieces every month with warm water and dish soap.
Scrub the Foundation Filters every 3-6 months with warm water and an abrasive sponge.
BOROUX Priming Pump
How many filters can I prime per battery charge?
On a full charge, you can prime a minimum of 10 filters before needing to recharge the pump.
It takes approximately 90 seconds to fully prime one filter.
What do the different light indicators on the Priming Pump mean?
The light on the Automatic Filter Primer displays the current battery status.
- Solid Green: Fully charged and ready to use
- Blinking Green: Currently charging
- Blinking Red: Battery level is below 25%. Needs to be charged soon.
- Solid Red / No Light / Blank: Battery is critically low or depleted. Needs to be charged immediately.
If unsure whether the pump is working correctly, try fully charging it and checking the light again.
Is the BOROUX Automatic Priming Pump water proof?
No, the Priming Pump is not waterproof. Do not fully submerge the Priming Pump in water.
Is the BOROUX Automatic Priming Pump compatible with Berkey filters?
Yes. The Priming Pump is compatible with Black Berkey Filters as well as BOROUX Foundation and Proactive Fluoride Filters (adapter included with fluoride filters).
Will using the BOROUX Automatic Priming Pump reduce filter lifespan or performance?
On the contrary—using the Priming Pump helps ensure complete and consistent priming, actually extending your filter’s lifespan and optimizing filtration performance.
What happens if a filter isn't primed properly?
Improper priming can lead to cloudy water, reduced flow rate, uneven filtration, and a shorter filter lifespan. The Priming Pump ensures consistent, proper priming for optimal filter performance.
Warranty and Returns
What is the 101-Day Satisfaction Guarantee?
BOROUX products come with a 101-Day Satisfaction Guarantee*. If for any reason, within 101 days of purchase, you are not satisfied with the filters, system, or drinkware you can get in contact with customer service to initiate a return.
*The Proactive Fluoride Filter and Shower Filter return period is 60 days.
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 systems (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.
How to do a return?
We hope you love your BOROUX, but if for some reason, it's unsatisfactory to you please reach out to us for a replacement, return and/or refund.
contact@boroux.com
Fees may apply if the product is not returned in its entirety with original packaging or if the items are damaged during return shipment due to packing.
- Remove the upper chamber from the lower chamber and set it on its side.
- Unscrew any BOROUX Foundation Filters and wingnuts, and remove the filters from the chamber. Screw the wingnuts back onto the filters with the washers attached. Set the filters aside somewhere they will not roll and be damaged.
- If hole plugs are used, unscrew and remove the hole plugs. Once removed, screw the hex nuts onto the hole plugs with the washers attached. Set the hole plugs aside.
- Allow the BOROUX Foundation Filters to air dry for at least 24 hours prior to packing.
- Disassemble the spigot and lower chamber. Unscrew the spigot by holding the hex nut inside of the chamber and turning the spigot.
- Remove the hex nut and the spigot from inside of the lower chamber and screw the hex nut back onto the spigot with the washers attached.
- Leave the silicone base ring attached to the bottom of the lower chamber.
- Set all pieces aside.
- Place the dry BOROUX Foundation Filters in a resealable zipper storage bag. Then place them in the original box.
- Bag all parts such as the hole plugs and spigot in their original box or in a resealable zipper storage bag.
- Place the filters and the parts inside of the lower chamber. Please add packing material into the inside of the lower chamber to properly secure all items.
- Turn the upper chamber upside down and nest it inside of the lower chamber. It should fit inside of the upper chamber.
- Place the lid on the bottom of the upper chamber.
- Place the system in the original product box if available, and seal it with tape for shipping. Do not apply the shipping label directly onto the product box. Instead, please place the product box, along with sufficient packing material, into another box for shipping.
If you have not already, please reach out to contact@boroux.com regarding return shipping information.
Troubleshooting
My filter won't prime
If your filter won't prime, try:
- the new Automatic Priming Pump
- using a plastic water bottle Watch Video
- soaking your filter overnight Watch Video
- scrubbing your filter Watch Video
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.
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.
Can I use my HSA/FSA funds for my purchase?
Yes, in most instances you can use your HSA and FSA funds to purchase your replacement filters or water filter system. HSA/FSA funds are NOT able to be used if you are purchasing your items with a subscription.
Why won't my coupon code apply to my order?
The most typical scenario that a coupon will not apply is if you are trying to apply it to a sale item, a system bundle, open box systems, or a subscription.
Why is the Red Dye Test no longer included?
The most typical scenario that a coupon will not apply is if you are trying to apply it to a sale item, a system bundle, open box systems, or a subscription.
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