The best Water Softener for your situation is down to personal choice and budget. Different types on the market include:
Non Electric Water Softeners - Non-Electric water softeners are powered entirely by the incoming water pressure. As no electrical supply is required, it is easier to install, and you will not have to worry about costly repairs or higher monthly electricity bills. Non-electric softeners tend not to have fiddly controls, adding salt is all that is requred to keep them running smoothly. 
The twin tank versions offer constant unlimited softened water to your home 24 hours a day, 7 days a week. Non-electric softeners are reported to be longer lasting and more reliable.
Metered Water Softeners - Metered water softeners are the most economical softener when it comes to using salt and regeneration water. A metered softener will only regenerate when a pre-set volume of softened water has been used regardless of the number of days this takes.
This avoids under- or over-regenerating of the softener when your water demand varies. Again ,the volume of softened water is calculated by the hardness of your water supply, the capacity of the water softener and number of people in the property.
Time Clock Water Softener - The more basic water softeners operate on a timed basis. The time clock is set to carry out its regeneration on set days. This is usually calculated by the hardness of your water supply, the capacity of the water softener and number of people in the property. When installed, the softener is set to regenerate off peak-times (like at 2:00 am) at the calculated regeneration frequency. To ensure that soft water is always available, the interval between regenerations will be underestimated rather than overestimated.
The softener will then regenerate at this set interval regardless of the volume of water used. If the water usage is low, for instance, one or more of the residents is away, there will be unused softened water capacity at the time of regeneration, which can be argued as an unnecessary waste of salt and regeneration water. Similarly, if there is an increase in your water usage, the softened water capacity will more than likely be exceeded and the water would go hard towards the end of the cycle before the next regeneration. If you are going to be away from the property for a period of time, i.e. on holiday, and there will be no water flowing through the water softener it is advisable that it is switched off until your return.
Some common brands of whole house water softeners are Culligan, Ionics, Pelican, RainDance, Kinetico, and Rain Soft. Each brand has its own pros and cons.
Besides brands, you might want to compare price, type, maintenance cost, after sale service, whether it uses salt or not, etc. when you buy water softeners.
Yes sodium chloride may be used in water softeners.
Oh, what a wonderful question! You can learn more about water softeners by visiting your local hardware store, where they often have helpful pamphlets and knowledgeable staff to guide you. You can also explore online resources and videos that explain how water softeners work and how to choose the right one for your home. Just remember, there are many ways to find the information you seek, and each one is like a happy little tree on your journey to understanding water softeners.
Yes, there is a difference between water softeners and water purification systems as water softeners merely filter the water whereas water purification systems actually filter and cleanse the water.
Magnetic water softeners are not scientifically proven to effectively reduce the hardness of water.
Yes, calcite is commonly used in water softeners as a mineral to help raise the pH levels of acidic water and neutralize acidity. It can help to prevent excess scaling and corrosion in plumbing systems while also contributing to the reduction of hardness in water.
There is a very good website based on consumer reviews of water softeners. The website is called: www.watersoftenercomparison.net. There is another backup website you can use if the first one provided is not sufficient. That website is called: www.ewatersoftenerreviews.com.
No. Calcium carbonate is one of the minerals that water softeners are supposed to eliminate, or at least reduce.
My water heater burned up today. What are some brands of water heaters with good reviews?
Water softeners vary, it depends on what water system you have as well as where you purchase from. They generally range in prices. It is worth it to comparison shop.
Saltless water softeners are a great investment and can actually work to make water more healthy, which is an important aspect of these water softeners. If you are going to make the investment in a new water heater, it is wise to know the advantages that saltless water softeners have over regular water softeners. The most obvious advantage is that they do not add any more sodium to the water than what is already there. This is an extremely important consideration if you are a diabetic or have someone in your home who is. These water softeners can be found in all of the same locations of your average water softener and are a much better investment.