Nowadays, many people want to know whether their tap water can meet the required standards. There are many ways to know the test results of tap water, such as using professional water quality testers, water quality test strips, making judgments on their own, and checking water quality in their area. Reports, etc., the most accurate data is certainly a professional water quality detector, but the cost of this instrument is too high, and the operation steps are also more troublesome, so it is generally used in water plants or professional testing institutions. Relatively speaking, the test paper is much cheaper, and the operation is very simple. It is also the first choice for household water quality testing. The water quality parameters that I understand through my senses are limited, and I can't get specific data information, so there is no substantial use. As for the water quality test report in the area where it is located, it is only the water quality status of the water plant. However, after the factory or after the second pressurization, the water quality data will definitely change, so more people regard it as a reference.
First, when testing the water quality of tap water, you must first understand what you are going to test.
If there are 71 items broken down according to national standards, it is not realistic for the family to conduct all tests. And some parameters must rely on professional water quality testing equipment. So we just have to choose this common tap water parameter: residual chlorine, bacteria, heavy metals, total dissolved solids, pesticide residues, and some of the pH concentration.
Second, determine the detection method of tap water
1. After determining the parameters to be tested, we need to select the test method for tap water. We recommend that you use the test strips. Because it can detect multiple water quality parameters at one time, although its data error is not accurate, it is convenient to use.
2. Conduct sensory judgments by yourself. The specific steps are generally divided into: smell, taste and color, but we do not recommend this method.
Smell smells the smell of water, mainly smelling whether there is bleaching smell, rotten egg smell or mold or earthy smell.
The taste of the product is mainly determined by the taste buds. For example, the metallic taste may be caused by low pH or excess minerals in the water supply (possibly due to rusted pipes). The water tastes salty, which may indicate chloride ions. Or caused by sulfate.
Check the color to judge the quality of the water by visually observing the color. Everyone knows that the water has no color, so any color of the tap water indicates that the water quality is problematic.
3. Obtain water quality reports from water plants in your area. This method can be obtained through multiple channels, one through the national tap water database and the other from the website of the relevant water department.
Through these three methods, it is very convenient for everyone to know whether the water quality of the tap water in the home is up to standard.