How To Test Your Water Hardness

Learn how to test the hardness of the water in your home to know whether or not your water softener is functioning properly.

If your home’s water supply is filled with a high density of minerals (a very common problem if you live in a city with hard water, like Las Vegas), your water can have a very poor impact on you and your family’s health, causing serious issues like cardiovascular disease, reproductive issues, growth retardation, and even cancer. This water is known as hard water and we are going to show you how to test for your home’s water hardness to assess if your home needs a water softener or if your home’s current water softener is functioning properly.

Required Tools:

A water hardness test kit, including:

Water Hardness Test Kit

Step 1: Add One Scoop of Reagent into the Canister

Make sure to keep the scoop level. By changing the amount of reagent, you may alter the results of the test.

Dropping reagent into canister

Step 2: Turn Your Water Faucet to the Hottest Setting

You will want to test for hot water and cold water separately. In Las Vegas, most water softeners are tied only into the hot water line to extend the longevity of the softener.

Step 3: Fill the Vile with Hot Water, Pour it into the Canister of Reagent

Cover the canister with your finger and shake it a bit, ensuring its well mixed, before you continue with the rest of the test.

Fill the vile with only pure hot water.Filling vile with hot water

Fill the vile with only pure hot water.

Pouring hot water into canister of reagent

Step 4: Check the Color of the Mixed Water

Pink water means that the water is still hard. Purple/blue water means the water is soft.

Step 5: Add the Titrant Solution One Drop at a Time, Counting Each Drop

Add drops slowly, one at a time, until the water changes colors to a purple/blue color. The number of drops needed to soften the water are called grains of hardness. If your home’s water was already soft, then zero drops would have been needed for the water to change colors.

Dropping titrant solution into canister of reagent

Counting.. 1.. 2.. 3..

Checking for water hardness

This is what the sample will look like once it is completely softened.

Next Steps: If Your Water Is Hard, You Need To Regenerate Your Water Softener & Check Salt Levels

For our tutorial on how to do this, check out this link: Regenerating Your Water Softener

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If you need help with further testing, installing or fixing your water softener, or other plumbing related tasks, Pure Plumbing is available 24/7. Call us at (702) 710-7388 to get help immediately or to schedule an appointment with one of our qualified Las Vegas plumbers. We are here to help!

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