Okay, what am I doing wrong. The water was blue, not pink when I added the microspoon of chemical, no drops added.

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.

What is the hardness range for this test kit? Thanks

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.

Does this kit come with the test tube and mixing bottle like the one from Hach?

Hach's part number 145300 does come with the measuring tube PN43800 and Glass Bottle PN 43900

Why would the color of soft water turn blue as soon as the indicator is added to the sample, without any additionof the titrant?

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!

Hach Total Hardness Test Kit Model 5 B Drop Count

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Description

💧 Stay ahead of water quality—test smarter, not harder!

BULK TESTING POWER - Includes enough reagents and tools for approximately 100 tests—perfect for continuous monitoring.
COMPACT PORTABLE - Lightweight 9-ounce kit with all essentials neatly packed for field or lab use.
VERSATILE TRUSTED - Used by professionals across water treatment, food & beverage, textile, and manufacturing industries.
PRECISION IN EVERY DROP - Accurately measures total hardness as CaCO₃ with simple drop-count titration for reliable results.
USER FRIENDLY MULTILINGUAL GUIDE - Clear instructions in English, Spanish, French, and Portuguese ensure effortless testing anywhere.

The Hach Total Hardness Test Kit Model 5-B offers a professional-grade, economical drop count titration method to measure water hardness as CaCO₃ within a 1-30 gpg range. Containing two reagents, a measuring tube, bottle, and scoop, it supports approximately 100 tests per kit. Trusted by industry experts, it’s designed for both field and lab use with multilingual instructions for global accessibility.

Specifications

ASIN	B008FM7WLU
Best Sellers Rank	#4,310 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Hardness Testing Equipment
Date First Available	May 20, 2011
Item Weight	9 ounces
Item model number	145300
Manufacturer	HACH COMPANY
Package Dimensions	5 x 2.72 x 2.6 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 93.71

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In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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TrustScore 4.5 | 7,300+ reviews

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Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300

Description

Specifications

Common Questions