A water softner tank is used to softened hard water. What water softening does is that they are removing ions. What is considered hard water? Well hard water is considered as having more than 4 grains per gallon of dissolved minerals in it. This includes calcuim, magnisms, carbonate and many more.
Inside the tanks there are resin beads which attracts the calcium and magnesium ions in exchange for sodium ions. Eventually the resins needs to be recharged and regenerated after many rounds of exchanges. This is when the resin beads is soaked in sodium ions which then replaces the calcium and magnesium ions. the sodium ions helps regenerate the resin beads making it possible for the resin to be used again and again to help softened the water.
What is the need for a water softner? Hard water causes white residue which can clog pipes and therefore it needs to be removed before it can go through the purification or filtration process.
Three types of water softners
-sodium-3 types of salt
pellets-made from evaporating sea water, this is the most popular type of salt used in a water softner tank.
cyrstals-solar salt contains slightly more water and has more insoluble material than pellets. This means that it can build up in the brine tank if your system regenerates more often.
block salt- not recommended to be used, easy to transport and store. Basically it is salt compacted into blocks. One downside is that it has a lot of insoluble matter and due to the purity of the salt your brine tank will need to be cleaned several times a year.
Potassuim- may be used in place of salt as it is 99.9 % sodium free, used to regenerate the softening resin. This is used because it reduces the amount of salt intake and discharge of the brine. People on a sodium diet would especially be more incline to using potassium as it is both a healthy element for humans and the environment.
-hydrogen peroxide- A powerful oxidizing agent, decomposes into oxygen and water leaving no place of residue. When this matter is added to water, large amount of dissolved oxygen is released and because of this it removes many chemicals such as iron, odors, manganese and hardness treatment. Iron can clog and coat the resin and prevent the tank from working correctly.
Two different types of managing water softening
– timer regenerated- One of the first method created to use as a water softener. It has a valve that incorporates a motorized or digital clock which has a wide selection of start time and days. When it needs to be turned on, it is preset to an estimated water usage So for example if you estimated that in a certain time of the day is when the resin needs to be regenerated then you would preset that time and when it reaches the time, the water softener will act like an alarm clock and starts regenerating at that time only.
-meter regenerated- This is the most popular water softener as it regenerates using a meter on the machine. The meter controls the valve and it is based on how hard the water is. If the resin is no longer softening the water this will trigger the meter that the water is becoming hard and therefore will automatically open the valve and start regeneration.
In conclusion water softening is actually a very important step that you do not want to skip when purifying your water.