--- product_id: 271343783 title: "Hach 145300 Total Hardness Test Kit, Model 5-b" brand: "hach" price: "498 zł" currency: PLN in_stock: true reviews_count: 5 category: "Hach" url: https://www.desertcart.pl/products/271343783-hach-145300-total-hardness-test-kit-model-5-b store_origin: PL region: Poland --- # Precise drop-count method Measures total hardness in grains per gallon Quick diagnostics for water softeners Hach 145300 Total Hardness Test Kit, Model 5-b **Brand:** hach **Price:** 498 zł **Availability:** ✅ In Stock ## Summary > 💧 Know your water, own your home’s health! ## Quick Answers - **What is this?** Hach 145300 Total Hardness Test Kit, Model 5-b by hach - **How much does it cost?** 498 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/271343783-hach-145300-total-hardness-test-kit-model-5-b) ## Best For - hach enthusiasts ## Why This Product - Trusted hach brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Save on Soap & Energy:** Control hardness to reduce soap usage and prevent scale buildup in appliances. - • **Simple Drop-Count Testing:** No guesswork—just add drops until color changes for clear, repeatable results. - • **Optimize Your Water Softener:** Diagnose inefficiencies early and avoid costly repairs with real data. - • **Trusted by Homeowners & Pros:** Highly rated, easy-to-use kit for anyone serious about water quality. - • **Accurate Hardness Measurement:** Pinpoint your water’s calcium & magnesium levels with lab-grade precision. ## Overview The Hach 145300 Total Hardness Test Kit uses a precise drop-count titration method to measure total water hardness caused by calcium and magnesium ions. Designed for quick, reliable testing, it helps homeowners and professionals diagnose water softener performance and prevent costly damage from hard water. Compact and easy to use, this kit delivers lab-quality results without the guesswork of test strips. ## Description Water hardness is caused almost entirely by calcium and magnesium ions. Other di- and trizalent metals have a similar effect, but usually are not present in high enough concentration in potable waters to cause problems. Hardness increases soap consumption in laundries and causes scale in boilers. Hardness test kits include the inexpensive Models 5-B and 5-EP designed for those needing quick checks on the efficiency of water softeners. More sophisticated test kits allow the determination of total hardness as well as calcium and magnesium (by difference). Review: I bought the Hach Model 5-B Total Hardness Test Kit because I was troubleshooting my water softener and needed real numbers — not guesswork. Test strips weren’t cutting it. I needed to know exactly what my grains per gallon were. My raw water tested at 7–8 drops (around 7–8 GPG), and after running multiple regen cycles and adjusting salt settings, I was still getting 7 drops on the “soft” side. That told me immediately something wasn’t right with my system — seals, piston, resin, something. Without this kit, I would’ve assumed the softener was working because it was cycling normally. The drop-count method is super simple: fill the tube, add drops until it turns blue, and count. That’s it. Clear, repeatable results every time. No vague color matching or guessing like cheap strips. And it’s consistent — I tested from multiple bibs and got matching numbers. If you’re serious about dialing in a water softener or diagnosing problems, this kit is worth every penny. It gives you facts, not feelings. Helped me narrow down my issue and saved me from replacing parts blindly. Highly recommend for homeowners who like to troubleshoot their own equipment instead of just throwing parts at it. Review: 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" Hmmmm A 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 desertcart 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. ;). ## Features - Water hardness is caused almost entirely by calcium and magnesium ions - Hardness increases soap consumption - Hardness test kits include the inexpensive Models 5-B and 5-EP ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008FM7WLU | | ASIN | B008FM7WLU | | Batteries Included? | No | | Batteries Required? | No | | Customer Reviews | 4.6 4.6 out of 5 stars (1,882) | | Customer reviews | 4.6 4.6 out of 5 stars (1,882) | | Date First Available | 15 February 2015 | | Date First Available | 15 February 2015 | | Included components | Lab | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 254 g | | Item model number | 145300 | | Item model number | 145300 | | Manufacturer | HACH COMPANY | | Manufacturer | HACH COMPANY | | Package Dimensions | 12.7 x 6.91 x 6.6 cm; 254.01 g | | Package Dimensions | 12.7 x 6.91 x 6.6 cm; 254.01 g | | Part number | 145300 | ## Images ![Hach 145300 Total Hardness Test Kit, Model 5-b - Image 1](https://m.media-amazon.com/images/I/81yV7KboZvL.jpg) ## Questions & Answers **Q: Okay, what am I doing wrong. The water was blue, not pink when I added the microspoon of chemical, no drops added.** A: It means your water is soft already. If it was pink, then however many drops you add to turn it blue, thats how many grains hard your water is. Since you did not have to add any drops that means your water is 0 grains hard. **Q: What is the hardness range for this test kit? Thanks** A: You can always dilute your sample to extend the range. Dilute with soft water (distilled, clean rain water, or previously softened water). Just check that the soft water tests for zero hardness before using it. 1:1 dilution would double your range. 1:9 would extend the range by a factor of 10. A cheap drugstore syringe could be used for dilutions if you don't want to eyeball it. **Q: Does this kit come with the test tube and mixing bottle like the one from Hach?** A: Hach's part number 145300 does come with the measuring tube PN43800 and Glass Bottle PN 43900 **Q: Why would the color of soft water turn blue as soon as the indicator is added to the sample, without any additionof the titrant?** A: This happens normally, if the water is soft (zero grains of harness). The grains of hardness is the number of drops of titrant you have to add to get the water to turn blue. If you do not have to add any drops of titrant, then you have zero grains! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by M***4 on 3 March 2026* I bought the Hach Model 5-B Total Hardness Test Kit because I was troubleshooting my water softener and needed real numbers — not guesswork. Test strips weren’t cutting it. I needed to know exactly what my grains per gallon were. My raw water tested at 7–8 drops (around 7–8 GPG), and after running multiple regen cycles and adjusting salt settings, I was still getting 7 drops on the “soft” side. That told me immediately something wasn’t right with my system — seals, piston, resin, something. Without this kit, I would’ve assumed the softener was working because it was cycling normally. The drop-count method is super simple: fill the tube, add drops until it turns blue, and count. That’s it. Clear, repeatable results every time. No vague color matching or guessing like cheap strips. And it’s consistent — I tested from multiple bibs and got matching numbers. If you’re serious about dialing in a water softener or diagnosing problems, this kit is worth every penny. It gives you facts, not feelings. Helped me narrow down my issue and saved me from replacing parts blindly. Highly recommend for homeowners who like to troubleshoot their own equipment instead of just throwing parts at it. ### ⭐⭐⭐⭐⭐ Review *by M***3 on 7 March 2017* 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" Hmmmm A 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. ;). ### ⭐⭐⭐⭐⭐ Review *by N***E on 12 February 2026* I've worked in Municipal water treatment for 30 years, and I've used them all. This is a good product, easy to use. Price is reasonable. Would have many many tests in this kit. ## Frequently Bought Together - 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 - HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/271343783-hach-145300-total-hardness-test-kit-model-5-b](https://www.desertcart.pl/products/271343783-hach-145300-total-hardness-test-kit-model-5-b) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*