Hach Total Hardness Test Kit, Model 5-B, Water Analysis Kit for Drop Count Titration, with 2 Reagents, Measuring Tube, Square Bottle & Measuring Scoop, 145300
Original price was: $41.35.$34.25Current price is: $34.25.
Price: $41.35 - $34.25
(as of Nov 03, 2025 19:22:07 UTC – Details)
From the brand
Hach – Ensuring Water Quality
We make water analysis better—faster, simpler, greener and more informative
Explore Portable Instruments
Hach – Be Right
When Your Water Analysis Has to Be Right.
Making Water Analysis Better for Over 80 Years.
Is Discontinued By Manufacturer : No
Package Dimensions : 5.04 x 2.68 x 2.6 inches; 8.96 ounces
Item model number : 145300
Date First Available : May 20, 2011
Manufacturer : HACH COMPANY
ASIN : B008FM7WLU
Best Sellers Rank: #7,341 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Hardness Testing Equipment
Customer Reviews: 4.6 4.6 out of 5 stars 1,980 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Trust the original Hach test kit! Simple drop-count titration measures hardness as CaCO3 (1 gpg = 17.1 mg/L). Utilizes drop count titration with a range of 1-30 gpg. Contains approximately 100 tests. Drop count titration – a simple, economical titration method!
Includes two reagents, measuring tube, square bottle, and measuring scoop.
Field and lab water hardness testing made simple
Our water hardness test kits are trusted by professionals in water treatment, food and beverage, textile, manufacturing, and other industries.
Method Name: Drop count titration/EDTA-bulk powder. Parameter: Hardness, total – As CaCO₃. Platform: Drop Count Titration
Customers say
Customers find the water hardness test kit easy to use for home testing and appreciate that it works reliably with repeatable results. Moreover, the kit provides more accurate data than test strips and can measure down to 1ppm, making it better than paper dip sticks. Additionally, customers consider it a great investment, with one mentioning it saved their water bill. However, the instructions receive mixed feedback, with some finding them clear while others report poor instructions.
8 reviews for Hach Total Hardness Test Kit, Model 5-B, Water Analysis Kit for Drop Count Titration, with 2 Reagents, Measuring Tube, Square Bottle & Measuring Scoop, 145300
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Original price was: $41.35.$34.25Current price is: $34.25.
John88 –
Works well
Easy to use and seems to be accurate.
momof3 –
Excellent Kit~ Well Worth the Money!
This kit works great! My daughter has been complaining that her hair doesn’t feel clean after shampooing. She said she needs a different shampoo. Then it dawned on me that my hair has been feeling the same way. I told my husband that I think we have hard water and something is wrong with our water softener. He replied, “No, our water is not hard, it is soft” HmmmmA friend stopped by last week and said, “what did you do to your hair??? It is lighter than I have ever seen it and it looks like you have Orange highlights!!” I had not done anything, but I did notice that my hair color was a bit different lately (I am a brunette) and didn’t know why. She looked closer and felt the ends of my hair and said, “you have hard water”.So, I went on Amazon to order the testing strips, but read the many reviews and finally decided this kit would be more accurate than the strips. I received it the next day. Sure enough, it took over 20 drops for the mixture to turn blue. Yep, our water is HARD!The company that installed our water softener came out today. The kit he brought with him was almost identical to this one. I watched him and it took 25 drops for the water to turn blue~ the softener is not working at all. He took the unit with him to do repairs. ” Rebed & Valve Repair”. The parts are under warranty, so we just have to pay for service & labor charges. He will be back Friday with the repaired water softener.The bad news: The labor and service charge is going to be over $550!! Wow, that seems high for the Service Charge and Labor Only!! Ugh :(However, I do highly recommend this test kit. Instructions on the box were clear and easy to follow. Maybe if we had bought this test earlier to use on occasion, we could saved some money in repairs. After it is fixed, I will think I will continue to use this kit on a Monthly basis to make sure the softener continues to be working as it should. ;).
Djduane –
Easy way to find out how hard/soft your water really is!
The best water hardness test kit on the market. Easy to use and accurate. Was recommended to me by a water softener company that uses this kit every day. I bought it because a plumbing company told me our water had 24 grains of hardness!!!!! Unheard of in this area as usually the hardest water is around 12 grains. I did find our water had about 4 grains of hardness and discovered the water softener wasn’t working properly! Highly recommend this to anyone needing to find out the truth about their water quality.
Captain T –
Easy and accurate test for water hardness
Works as expected, glad I chose this testing kit over the other typesÂ
Ed K –
Works great but NO DOCUMENTATION with product
Ok, so itâs accurate and easy to use, but the Hach company provides absolutely NO DOCUMENTATION with what the various hardness levels are. The bar code sticker is placed over the English instructions (really stupid to do this). The paper instructions that came in the box have three different languages, but NO ENGLISH.
Cody N –
Most accurate homeowner hardness kit.
Great hardness kit. We use this to periodically test our well water and it seems to be much more accurate than test strip kits. It will last quite a long time.
J. Hart –
Buy it, well worth the money.
Kit does exactly what it says it does. I recently replaced my water softener but needed a way to validate whether or not it was working. Some of the bigger chain home improvement stored do carry water testing kits, but those kits are generally about $10 and only have “one time use” test strips, typically only 1 water hardness test. The other tests are for Iron, Sulfates, etc…If you happen to find a Morton Salt pamphlet in one of those stores, they include for free one single use water hardness kit; I didn’t want to take 10 free pamphlets just so I could have a supply of water hardness test kits – besides, those test strips don’t graduate the hardness scale very well. This kit does it extremely well. For years, I’ve read and had plumbers tell me that the cold water supply to the kitchen sink is typically not softened water – designed that way for taste as hard water tastes better than softened water. So I got this kit after installing a new water softener, went to the kitchen cold water facet, performed a test, and the hardness tested at 21 grains. Our municipal water supply is advertised at 19.5 – 22 grains, so this was right on the money. Next I went to the bathroom and tested cold water from the shower. Zero (0) grains of hardness. This instantly proved my water softener was working properly and gave me important information to relay to the next owner of this house. The kit has the directions in 3 languages on the side of the box. If you can’t follow the direction…let’s just say a 10 year old could probably do it. The kit claims about 100 water tests so at $38, that comes out to about .40/test including the shipping costs. Forty cents vs $10.95 + tax for just one hardness test…. I’ve already done like 5 tests so do the math (wanted to test softener performance after 500 gallon intervals between regenerations). This is an easy 5 star product.
MrFixIt –
Skip the strips and just get this kit.
Trying to use the dip and test type strips of other kits proved to raise more questions than answers when trying to determine how hard my household water was. The color of the strips never aligned with the charts shown and from one kit to the next, nothing was really showing consistent results. I also wasted more money on them than the cost of this kit, which I regret not buying right off the bat.Right to the point, this kit is easy to use and gives a clear answer as to your waters hardness level, which I needed to know in order to shop for an appropriate water softener. Once the water hardness was known, I then knew how to adjust the settings of my new softener. Testing my water afterwards with this kit then confirmed the softener was working. With such an ample amount of test kit components left yet, I have shared this kit with my neighbors and have plenty left over for several years of testing down the road.