Dong so may wash away some of the chemicals needed to test how hard your water is. The result you get might be false, which is what you do not want. • You should also not put the test strips under running water. Price on application’ (POA) quotations and all other quotations do not constitute offers and will be valid for 30 days from the date of the quotation, unless otherwise notified by VWR.

The pad is sensitive. Touching the testing pad may contaminate it or affect the chemicals in it. Any of these may lead to a false result. • Do not use a garden hose to take a water sample. Kits using the digital titrator can measure hardness more accurately than drop count titration kits. This is because the digital titrator dispenses the EDTA solution in very small increments with higher precision. Hardness test kits with digital titrator use the ManVer indicator. Water hardness test strips are plastic. But on one end, there is a small testing pad. The testing pad can absorb water. If the measuring kit you use comes with a longer time, leave the test strip in the water for that period. • Shake away the excess water.The colors show the presence of calcium and magnesium in your water. Calcium and magnesium are the minerals that make your water hard. Each color shows a different degree of water hardness. Hard water has 9-11 grains in every gallon. This is the same as 121 to 180 milligrams in every liter or parts in every million units. Water That Is Very Hard

General description: For semi-quantitative determinations. Detection method: colorimetric. Fast, simply dip and read indicator paper. Consists of a plastic strip with attached sealed test paper. Compare colour change of test paper with fields of equal size on colour chart provided on plastic box. So, to make things easy for you, we have explained all the important factors that you must consider in this section. We hope that after reading this, you will be able to choose the correct hard water test kit for your needs. Water SourceThere are different ways to go about testing for water hardness. But the most accurate way to test the water supply to your home is with water hardness test strips. They are easy to source, buy, and use. You may even be able to find free hard water test kits. But, if you want to know the results instantly, then we recommend you go for those test kits that deliver instant results. Impurities