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Pool and Spa Rapid Bacteria Test by Watersafe, Detects Down to 1 Bacteria/μL, including E. coli, Salmonella and More, Pack of 10

4.2 4.2 out of 5 stars 507 ratings
$54.99 with 8 percent savings
List Price: $59.99
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Number of Items: 10
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Purchase options and add-ons

Brand Watersafe
Ph Range 7.2-7.8
Recommended Uses For Product Spa, Swimming Pool
Manufacturer Silver Lake Research
UPC 785934109721 664733359103

About this item

  • Comprehensive Water Safety: Replace multiple tests for chlorine, bromine, and pH with a single Watersafe Rapid Bacteria Test to ensure your disinfection process is effective - in fresh and saltwater pools or other water systems.
  • Rapid and Reliable: Get lab-accurate results on the spot in just 15 minutes! The ideal water test kit for swimming pools, hot tubs, spas, even fish ponds and aquaculture.
  • Advanced Disinfection Verification: For UV and AOP disinfection systems that leave no chemical traces, our test is the best way to check for the presence of harmful bacteria like E. Coli, Salmonella, and Enterococcus.
  • Portable and User-Friendly: Ideal for on-the-spot testing in public or private facilities, our compact kit allows you to quickly check water safety, providing peace of mind wherever you are.
  • Proudly American: Manufactured in the USA, Watersafe sets the standard for rapid, accurate, and easy-to-use water testing, trusted by professionals and consumers alike.
› See more product details

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 5.75 x 4.38 x 4.38 inches; 3.84 ounces
  • Item model number ‏ : ‎ WS-359BP
  • Date First Available ‏ : ‎ March 17, 2010
  • Manufacturer ‏ : ‎ Silver Lake Research
  • ASIN ‏ : ‎ B003VTAYIU
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.2 4.2 out of 5 stars 507 ratings

Important information

Directions

Follow the instructions provided in the 'product_description' field to screen the pool water or spa water for dangerous bacteria.

From the brand

Product Description

pool test testing strip bacteria spa water
watersafe bacteria pool spa water test testing strips

Our Test Strips Are So Easy to Use, You’ll Test the Water More Frequently

There’s a reason public pools are required to check their water every hour. Pools are meant to be fun, provide exercise and family time, and increase happiness. The way to keep it that way is to confirm the purity of your water with a pool or spa water test strip. We swim in, submerge our eyes, nose, and mouth under, and sometimes swallow pool water.

That’s why we made Watersafe the easiest water bacteria test kit you’ll ever use. Because when testing is easy and inexpensive, you’ll do it more often. With Watersafe, never doubt that your pool is an awesome experience, free of harmful levels of bacteria.

A Growing Problem

Bacteria are living organisms present in and on almost everything. Not all bacteria are harmful. But often, bacteria that is the product of the waste of warm blooded animals is a culprit of infection and disease. Pool and spa water provide an environment for rapid growth and spread.

Kinds of Bacteria

There are over 30,000 species of bacteria. Watersafe's rapid bacteria water test screens for the most dangerous and common bacteria found in pools. Did you know, in favorable conditions like warm standing water, a single bacterium can multiply to over 16 million in 8 hours?

Bacteria’s Effects

The CDC has an acronym: RWIs for Recreational Water Illnesses. RWIs are on the rise in the US. You can read about diarrheal illness, rashes, ear infections, respiratory infections, illness and even death at the government website. Avoid experiencing these harsh truths first-hand by testing often!

Tests for the following Bacteria

pool spa bacteria water test testing strips kit watersafe

Babies and Pets, Oh My.

So many factors conspire to make the pool a bacterial growth spot: rainwater run-off, children, pets, guests, hygiene, and temperature! Bacterial contamination is a high probability in a pool. Our bacteria test kit can detect harmful bacteria.

pool spa bacteria water test testing strips kit watersafe

The Key to Safety: Frequent Testing.

Stay ahead of the rapidly shifting nature of bacterial contamination. Use a pool test kit often: before and after pool parties, after a rain storm, when you haven’t used the pool in a while—test whenever you want to be sure.

pool spa bacteria water test testing strips kit watersafe

Pools are Fun! Keep Them That Way.

Dip the bacteria test strip into a vial containing 6 drops of your pool water, and in 10 minutes the results are plain to see. It’s that easy. Make it a habit for good health—keep a supply on hand to test the safety of your pool.

pool spa water test testing kits strips watersafe bacteria

A Research Company. Why We Do It.

We believe in scientific truth and the power of the people. Silver Lake Research produces water quality test kits for homeowners, pool servicing companies, hotels, and other businesses—for anyone who would benefit from a greater ability to screen swimming water for bacterial contamination on the spot. The real and lasting damage that comes from unwitting contamination exposure is a fact in current day society that should not be tolerated.

The products we invent and produce are just one step of many that are needed to protect people from these very real dangers. Use Our Pool and Spa Rapid Bacteria Test to help you and your loved ones obtain the knowledge instrumental in staying safe and to help ensure a long and healthy life.

Drinking Water Kit
Single Lead Test
Single Bacteria Test
Customer Reviews
4.2 out of 5 stars 3,596
4.1 out of 5 stars 223
3.9 out of 5 stars 31
Price $36.99 $22.99 $15.99
Quantity 9 Tests 1 Test 1 Test
Sample Type Drinking Water Drinking Water Pool, Hot Tub...

What's in the box

  • Water Test Kit Rapid Bacteria

    • Looking for specific info?

    Customer reviews

    4.2 out of 5 stars
    507 global ratings

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    Customers say

    Customers find the chemical test strip easy to use and providing results within 15 minutes. They appreciate the clear instructions and straightforward results. The test is a good screening test for bacteria and can be used to check water purification systems and wells. However, some customers have issues with the line quality and readability. There are mixed opinions on the test results, value for money, and build quality.

    AI-generated from the text of customer reviews

    Select to learn more

    Ease of useSpeedBacteria detectionTest resultsValue for moneyBuild qualityLine qualityReadability
    20 customers mention "Ease of use"14 positive6 negative

    Customers find the product easy to use with clear instructions and results that are easy to read. The test takes only 15 minutes and the strips are easy to see.

    "...They were easy to use and saved the day! If you need it, there is also a how to video on You Tube you could watch!..." Read more

    "Product easy to use but you have to go online to figure out how to interpret the test" Read more

    "...My recommendation: Use a timer and follow directions closely. It is finicky!..." Read more

    "...I know how to run many lab tests. The instructions on this are straightforward. The instructions are clear...." Read more

    9 customers mention "Speed"9 positive0 negative

    Customers appreciate the fast and straightforward results of the chemical test strips. They find them easy to use and say the strips save time.

    "...So helpful to see results in minutes!" Read more

    "...I like the fast 15 minute test time." Read more

    "The product is easy to use and provides the results within 15 mins...." Read more

    "...We follow up w/ lab support but this tool saves us sOOOOO much time. Not once has our Watersafe result. been challenged by our lab!..." Read more

    7 customers mention "Bacteria detection"7 positive0 negative

    Customers like the product's ability to detect bacteria. They mention it's a good screening test for bacteria at a good price, and an awesome way to test bacteria in your pool, water purification systems, and wells. It checks the efficiency of ones sanitizing efforts and can test against pseudomonas aeruginosa, E-coli, and spa water.

    "...The product does not identify good or bad bacteria. I use it to spot check so I know when to use more chlorine...." Read more

    "This says it will test against pseudomonas aeruginosa. We did 2 tests on our hot tub water and both said the water was fine...." Read more

    "checking spa water. wife wants the extra piece-of-mind. Now I can prove we don't have a bubbling caldron of germs. great product" Read more

    "Awesome way to test bacteria in your pool" Read more

    39 customers mention "Test results"13 positive26 negative

    Customers have mixed opinions about the test strips. Some say they work as advertised and provide a sense of comfort, while others report that some strips did not work or produced no results.

    "...But the tests do not work...." Read more

    "Works just as described, but I went through 2 tests to get a result. the first strip was a dud. Ill keep testing monthly." Read more

    "...Agile in it making that whole test strip unusable. I have used four plus that one, not sure if any other test modules will have...." Read more

    "I was expecting more than 3 test strips to work! 7 of them didn’t show any results and I followed instruction and timed every steps...." Read more

    10 customers mention "Value for money"3 positive7 negative

    Customers have different views on the value for money of the chemical test strips. Some find them great value, while others say they're a waste of money and useless.

    "...Then after 3 tries all failures. No results. Waste of time and money." Read more

    "...What a waste of money." Read more

    "Best value by far, worked fine" Read more

    "...Waste of money. Do not buy." Read more

    7 customers mention "Build quality"4 positive3 negative

    Customers have mixed opinions about the build quality of the chemical test strips. Some say they are well-made and arrive on time, while others report problems like the strips falling apart when in contact with water, no lines, or being faulty.

    "...been challenged by our lab! Great product and as advertised! Jahn" Read more

    "We tried these test stripes but are not pleased with them. The first one fell apart once it came in contact with the water, the second worked but..." Read more

    "...Now I can prove we don't have a bubbling caldron of germs. great product" Read more

    "...The test strip produced no lines, twice, and seems to be faulty. Then, I also noticed it's just for pools and spa's, but I tested my drinking water." Read more

    3 customers mention "Line quality"0 positive3 negative

    Customers are unhappy with the line quality of the chemical test strips. They report no lines on the first attempt, and a nice control line but no positive line.

    "No lines on first attempt. I believe it was due to not timing the 5 minute wait time before inserting the test strip...." Read more

    "...That was negative as well. Nice "control" line but no "positive" line." Read more

    "I have gone through 3 of these tests and so far no lines have shown at all which according to instructions means the test is invalid...." Read more

    3 customers mention "Readability"0 positive3 negative

    Customers are unhappy with the readability of the test strips. They mention a faulty test if the results are not readable.

    "...it came in contact with the water, the second worked but the result was so hard to read...." Read more

    "...After 6 test, each resulted in zero results. No readable result, which according to enclosed docs. Equals a faulty test...." Read more

    "can not get a reading, so not very helpful product" Read more

    No lines on first test, second test REALLY popped
    4 out of 5 stars
    No lines on first test, second test REALLY popped
    No lines on first attempt. I believe it was due to not timing the 5 minute wait time before inserting the test strip. The second test was timed and produced a NOTICEABLE line after 10 minutes.My recommendation: Use a timer and follow directions closely. It is finicky! Note: Oddly enough, the loaded vial will slightly change the color of the water during the 5 minute wait time (before the strip is inserted) and after swirling it.
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    Top reviews from the United States

    • PattyB
      5.0 out of 5 stars Works just as described, but I went through 2 ...
      Reviewed in the United States on June 3, 2016
      Number of Items: 10Verified Purchase
      Works just as described, but I went through 2 tests to get a result. the first strip was a dud. Ill keep testing monthly.
      One person found this helpful
      Helpful
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    • Tami
      5.0 out of 5 stars Easy to use
      Reviewed in the United States on August 14, 2016
      Number of Items: 10Verified Purchase
      We own a pool company servicing vacation rental properties and there was a renter checking in that was having chemo therapy and could not swim in a pool with bacteria. We ordered these test strips so we could test the pool daily according to her doctor's instructions and these worked amazingly well. They were easy to use and saved the day! If you need it, there is also a how to video on You Tube you could watch! Will definitely order again should be need arise.
      11 people found this helpful
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    • Jenna Kubat
      4.0 out of 5 stars Quick and easy
      Reviewed in the United States on January 16, 2025
      Number of Items: 10Verified Purchase
      Product easy to use but you have to go online to figure out how to interpret the test
      Helpful
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    • Brenda N.
      5.0 out of 5 stars Keep your Hot Tub SAFE!
      Reviewed in the United States on March 23, 2024
      Number of Items: 10Verified Purchase
      We had one incident of bacteria in our hot tub, even though we are diligent to properly treat the water. But after this one time and having grandchildren have a rash, we knew we needed to have a dependable product to test our water quality. So helpful to see results in minutes!
      One person found this helpful
      Helpful
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    • Carly Boschma
      5.0 out of 5 stars Good
      Reviewed in the United States on September 29, 2024
      Number of Items: 10Verified Purchase
      Gave us piece of mind regarding our spa water
      Helpful
       Report
    • S. Williamson
      1.0 out of 5 stars Don’t waste your money
      Reviewed in the United States on July 16, 2020
      Number of Items: 10Verified Purchase
      I’m a retired lab technician. I have a professional degree. I know how to run many lab tests. The instructions on this are straightforward. The instructions are clear. All necessary reagents and instruments are provided: a vial with reagent in the bottom and a sample pipette to deliver the correct amount of your sample water.

      But the tests do not work. I blew through half the box today, as my order arrived yesterday while I was working, and never even had a control line pop up. I quit because I was becoming frustrated.

      I ordered these tests because my kids all had swimmer’s ear, and the doctor wondered if it was from our pool or another body of water we have used recently. I still don’t know as I can’t get any tests to work!
      45 people found this helpful
      Helpful
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    • Madison D.
      3.0 out of 5 stars Not too bad
      Reviewed in the United States on September 24, 2022
      Number of Items: 10Verified Purchase
      One of the tube for collecting the water sample had. Agile in it making that whole test strip unusable. I have used four plus that one, not sure if any other test modules will have. A hole in the tube or not but not worth the return process. Just beware that out of the 10, you’ll have at least seven good ones maybe.
      One person found this helpful
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    • Nicole Marne' Morgan
      5.0 out of 5 stars Great as a backup safety check
      Reviewed in the United States on February 24, 2018
      Number of Items: 10Verified Purchase
      We (our pool committee) use this product as a back up to the pool management companies maintenance / chemical control. We do a test once a week. We found 1 week last summer that there was a bad imbalance in the chemicals because of this test....thus we closed the pool for a day to shock and treat the water. We started using this test because we had a large number of children in the neighborhood with swimmers ear and we were suspicious that the pool was not being maintained correctly. The technique for using this product is very specific. You MUST wash your hands and follow the directions carefully! Use a phone to time each step, etc. If you do, you will get accurate results. Whenever I get a positive (positive for bacteria) or blank result (erroneous) result I do a second test to be extra sure. Two positives is an automatic pool closing.
      13 people found this helpful
      Helpful
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    Top reviews from other countries

    • nadine
      4.0 out of 5 stars Not sure if it really works
      Reviewed in Canada on August 6, 2019
      Number of Items: 10Verified Purchase
      I liked the product when texting my pool water it came up negative within the first 10-15 min. But when I left it longer then that. It eventually turned positive. So don’t know which results to believe.
      Report
    • David
      1.0 out of 5 stars Not reliable
      Reviewed in Canada on March 23, 2021
      Number of Items: 10Verified Purchase
      Not reliable product. Ran 2 tests that showed positive for bacteria in hot tub. Emptied, sanitized and thoroughly rinsed tub. Ran another test and got same result. Expensive unreliable product
      Report