Search  for anything...
Berkey

Berkey Biofilm Drops Extend Shelf Life of Stored Water—for Use with Long-Term Water Storage Containers, Ideal for Emergency Preparedness

    • Based on 60 reviews
Condition: New
Checking for product changes
$41.00 Why this price?

Buy Now, Pay Later

As low as $10 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 19 left in stock
Fulfilled by The Brky Guy
Arrives Nov 19 – Nov 23
Order within 18 hours and 13 minutes
Available payment plans shown during checkout

Features

  • One bottle of Berkey Biofilm Drops treats up to 330 gallons of clean water and extends its shelf life up to 5 years, eliminating the need to rotate your stored water every 6 months.
  • Berkey Biofilm Drops are not intended to kill biological contaminants or purify water. Rather, they are scientifically engineered for use in defense against the potential growth and buildup of biofilms, which protect pathogenic microbes from disinfection by creating a slime layer that can spread inside water storage containers.
  • Simply add drops to potable water to extend the shelf life of stored water in long-term water storage tanks, jugs, and drums. Berkey Biofilm Drops can also help maintain fresher water in RV and boat drinking water tanks.
  • By helping inhibit potential biofilm growth, Berkey Biofilm Drops can help extend the life of Black Berkey Elements and other gravity-fed water filters such ceramic and carbon-block filters and may extend the time needed between filter and system cleanings.
  • Easy-to-use kit includes Berkey Biofilm Drops, copper testing solution and instructions.

Description

Berkey Biofilm Drops extend the shelf life of stored water in long-term storage containers, making them ideal for emergency preparedness. One bottle of Berkey Biofilm Drops treats up to 330 gallons of clean water and extends its shelf life up to 5 years—eliminating the need to rotate your stored water every 6 months. Berkey Biofilm Drops are not intended to kill biological contaminants or purify water; rather, they are scientifically engineered for use in defense against the potential growth and buildup of biofilms, which protect pathogenic microbes from disinfection by creating a slime layer that can spread inside water storage containers. BerkeyBiofilm Drops can also help maintain fresher water in RV and boat drinking water tanks. Kit includes Berkey Biofilm Drops, copper testing solution and instructions.From the ManufacturerBerkey systems have been the trusted choice of adventurers, relief agencies, preppers, off-grid homesteaders and families for over 20 years. Berkey gravity-fed water systems are available in 7 sizes, and are ideal for use at home, camping, fishing, RVing, or during unexpected emergencies and disaster scenarios.


Item Weight: 0.15 Pounds


Duration: 6 months


External Testing Certification: WQA


Brand: Berkey


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 4.3 x 2.6 x 1.8 inches; 2.4 Ounces


Item model number ‏ : ‎ DROPS-BB


Date First Available ‏ : ‎ June 11, 2015


Manufacturer ‏ : ‎ Berkey


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 19 – Nov 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • ... be awhile before I know if it is a good long term preservative for water storage
It will be awhile before I know if it is a good long term preservative for water storage, but it does a great job on the Berkeys for keeping the water fresh and keeping scale down. Found myself having to clean out the top of the Berkey at least once a week; the water would start to taste a little brackish and stale. Since using this, there's been no such problem. Each container has A LOT of product and is very long lasting. Have a new neighbor who is also a fan of the Berkey and happily uses the product for the same reason. ... show more
Reviewed in the United States on August 19, 2017 by Candace
    • This product was used?
Review Image by James Fisk James Fisk
This package box was open and the seal on the bottles was missing. Copper test bottle 2/3 full.
Reviewed in the United States on October 18, 2022 by James Fisk James Fisk
    • Keeps the slime out of our Birckey!
Love our Birckey, but needed something to keep the biofilm out. This works wonderfully and is pretty cost effective.
Reviewed in the United States on September 30, 2019 by LS
    • Awful
After about a month, water tasted and smelled like garlic. Worse, in fact. This was water originally filtered through a reverse-osmosis filter, passed through a PUR carbon filter and stored in a PUR water pitcher (actually, two of them with the same results), with probably a daily turnover in volume, unrefrigerated. I also tested the water with the included reagent, which indicated no free copper in the correct concentration, presumably indicating no antimicrobial activity from the solution. On contacting Berkey they did not seem to be familiar with their own product, and offered no reason or explanation for the failed test. This product at best does nothing, and at worst in short order imparts a horrible taste and smell to the stored water (it's mainly a weak solution of copper sulfate, used by ranchers for years to inhibit the growth of algae in horse tanks, but frankly a horse tank never smelled so bad). Unfortunately, in my haste to get rid of the mess, I didn't check for microbial growth (although the stored water also seemed slightly cloudy), so I can't say with certainty that bacterial/fungal/algal growth contributed to the odor and taste, but I'm not about to do another trial and find out. Back to ZeroWater, warts and all. I do not recommend this product for storage or purification of your water supply, or for anything else. ... show more
Reviewed in the United States on May 3, 2022 by Paladin
    • Good Product
I’m glad I got this for an emergency. It makes me feel reassured having it.
Reviewed in the United States on March 14, 2020 by L. R.
    • It far exceeded my expectations, another fantastic Berkey product!
Love it! Its by far the best product ever, and one bottle treats 330 gallons of water. Best of all, it's easy to use and completely eliminated the biofilm-algae buildup that often occurred in my upper tank. And I definitely believe it's extending my filter life. Another fantastic product by Berkey!!! Two thumbs up, way up! ... show more
Reviewed in the United States on November 23, 2020 by Ty
    • Tampered product
Review Image by Caara Caara
Awful. When I opened the box and read the instructions it said not to use if the seal was broken. Not only did this bottle not have a seal but close to half of the copper solution was used. Terrible. I will never order anything Berkey related except from the manufacturer direct. Beware if this seller. ... show more
Reviewed in the United States on January 6, 2022 by Caara Caara
    • No security tape had been opened
This Was supposed to have a hey security tape on top of the box and it did not have it. The instructions said do not use if security tape is not on.
Reviewed in the United States on March 10, 2021 by Pam Spiek

Can't find a product?

Find it on Amazon first, then paste the link below.