Description

Professional Hardness Test Kit 30 to 50 Tests 

Very accurate.  Unlike hardness test strips that tell you a range, this kit tells you exactly how many grains per gallon of hardness you have. Makes it easy to program your water softener, or check and see if your water is hard or soft.

What is included: Blue plastic case to protect reagents; Each will be labeled as Solution 1, 2, and 3.  The plastic Test vial is 10 mL.

Easy and accurate drop count method.  Much more accurate than test strips!  Find out exactly how many grains per gallon of water hardness you have.

Long Lasting Water Hardness Tester!  Good for five years after purchase. Keep out of direct sunlight.

Instructions:

1. To the plastic test bottle add 5 mL of cold water to the 10 mL provided bottle, now add three drops of the Solution 1 which is your hardness solution & swirl to mix.

2. Add three drops of the Red Solution 2,  & swirl to mix.  A blue color indicates soft water. If a red color develops proceed to step 3.)

3. If red add Solution 3, by drops, 1 drop at a time.  Swirl to mix after each drop while counting how many drops until test sample turns Blue.

Each drop of Solution 3 (Titrant) equals one grain of Hardness in units of Grains per Gallon (GPG). 

Multiply # of drops by 17.1 to determine hardness in ppm.

Water testing of 75 GPG or more should be forwarded to a water analysis laboratory for further analysis.