Domestic soft water machines play an important role in removing calcium and magnesium ions from water, thereby reducing scale formation and improving water quality. So, what is the water hardness standard of domestic soft water machines? How to detect it? The following will give you a detailed answer.

　　The water hardness standardof domestic soft water machines

The water hardness standard of domestic soft water machines is generally measured by the total amount of calcium and magnesium ions per liter of water, usually expressed in 'hardness units', that is, 10 milligrams of calcium or magnesium ions per liter of water is equivalent to 1 degree of hardness. The water hardness standard of soft water machines is usually set to less than 1 degree to ensure that the water quality is suitable for daily drinking and cooking.

How to detect the water hardness of the output of a soft water machine

The methods for detecting the water hardness of soft water machines mainly include laboratory testing and home simple testing.

Laboratory testing

　　Laboratory equipment: Use professional hardness meters or hardness titration instruments for testing, which is themost accurate method.

Operation steps: Take a certain amount of soft water sample, follow the steps on the instrument manual, usually need to add indicators and titrate, and calculate the hardness value according to the titration results.

Home simple testing

Tools: Home water hardness test strips or water hardness meters.

　　Operation steps: Take a certain amount of soft water sample, follow the steps on the instructions of the test strip or instrument, usually need to immerse the test strip in water, or touch the test end of the instrument to the water sample, and judge the hardness according to the color change on the test strip or the display of the instrument.

Precautions

Accuracy: Laboratory testing results are more accurate, but they are more expensive and not suitable for daily home use.

Selection of test strips or instruments: Choose reputable and high-accuracy test strips or instruments to ensure the reliability of the detection results.

Sample collection: To ensure the accuracy of the detection results, it is best to collect water samples that are as close as possible to the conditions of use, avoiding the influence of other factors.

Conclusion

The water hardness standard of domestic soft water machines is generally set to less than 1 degree to ensure that the water quality is suitable for daily use. The methods for detecting the water hardness of soft water machines mainly include laboratory testing and home simple testing, with laboratory testing being more accurate but more expensive. Home simple testing is simple to operate, but it requires the selection of appropriate tools and accurate sampling to ensure the reliability of the detection results.