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!

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Total Hardness Test Kit, Model 5-B, Water Analysis Kit for Drop Count Titration, with 2 Reagents, Measuring Tube, Square Bottle & Measuring Scoop, 145300

Product ID: 11931791

💧Measures hardness 1-30 gpg

🧪Includes 2 reagents + full kit

⚗️Drop count titration method

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Description

💧 Know your water, own your space — test like a pro with Hach!

COMPLETE TESTING KIT - Comes with reagents, measuring tube, square bottle, and scoop—everything you need to start testing immediately.
TRUSTED BY PROFESSIONALS - Used across industries like water treatment, food & beverage, and manufacturing for reliable, repeatable results.
MULTILINGUAL INSTRUCTIONS - Clear, step-by-step guides in English, Spanish, French, and Portuguese ensure no barriers to accurate testing.
SIMPLE DROP COUNT TITRATION - Economical and easy-to-use method eliminates guesswork—just count drops until color change for instant clarity.
PRECISION HARDNESS MEASUREMENT - Accurately quantifies water hardness from 1 to 30 grains per gallon (gpg) for data-driven water management.

The Hach Total Hardness Test Kit Model 5-B offers precise, professional-grade water hardness measurement using a simple drop-count titration method. Covering a range of 1-30 gpg, it includes all necessary reagents and tools for approximately 100 tests. Trusted by industry experts and designed for both field and lab use, this kit delivers consistent, quantifiable results to help you optimize water treatment and maintenance with confidence.

Specifications

ASIN	B008FM7WLU
Best Sellers Rank	#5,485 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Hardness Testing Equipment
Date First Available	May 20, 2011
Is Discontinued By Manufacturer	No
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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