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Small towns and Rural areas are most affected by hard water. There are water softeners that help prevent hard water, but providing people with one would be a hassle. Another way you can treat it is with lime or passing the passing of an ion exchange (salt). 
Check out the water project if you want to know how they are helping. 
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In Cape province of South Africa and Karoo hard water is a major problem and water hardness can be treated by installing a water softener.

Further Explanation

Hard water

Hard water will be water that has high mineral substance (conversely with "delicate water"). Hard water is formed when water permeates through stores of limestone, chalk or gypsum which are to a great extent comprised of calcium and magnesium carbonates, bicarbonates and sulfates.

Hard water problems in South Africa

Mostly South Africa acquires its water from boreholes infiltrating underground springs since precipitation in the greater part of the nation is low by worldwide models, and most streams are liable to, best case scenario, regular-stream.  

In the event that these springs happen in rocks that contain water-dissolvable calcium or magnesium salts, the water delivered from them will be 'hard' and anticipate the correct activity of cleanser. In certain territories, for example, the Kalahari of the Northern Cape, groundwater is difficult to such an extent that it has a strange taste.

Solution of hard water

One of its solutions is to install a water softener. These helpful units utilize an extraordinary assortment of salt to neutralize the minerals in the water and stop development before it begins. They can even be redone, so on the off chance that you like, it can just relax the hot (or washing) water, while leaving your cold (or drinking) water immaculate. The main inconvenience is that a conditioner can be costly and it will somewhat build your service bills.  

In the event that water softener isn't the best decision for you, there are different approaches to manage scale development. For family units with hard water, vinegar is your closest companion! Plain white vinegar is fantastic for clearing mineral scale off of your installations. You can even utilize vinegar as a flush operator in your dishwasher and instead of cleansing agents in the clothes washer to avert development on your dishes and garments. On the off chance that mineral development is influencing your espresso producer, simply run some vinegar through it to get it out.

Answer details

Subject: Physics

Level: College

Keywords

  • Hard water
  • Hard water problems in South Africa
  • Solution of hard water

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