TDS stands for Total Dissolved Solids and this measurement is to check how hard the water supply is. TDS means the total number of solids in parts per million that are dissolved in the water supply. This value is affected by all the salts, heavy metals and various other kinds of minerals that are present in the water. The government has set an upper and lower limit to the TDS that is permissible in drinking water.
The minimum TDS value should be 50 parts per million and the maximum TDS value should be 500 parts per million. TDS value of more than 500 parts per million is considered harmful for the human body and this requires purification by using water purifiers that can control the high level of TDS.
The best water purifier for purifying water with high TDS is an RO purifier. Here are a few features that make RO purifier the best for purifying water with high TDS:
RO purifiers come equipped with a TDS Controller. This is responsible to keep the TDS level in check. This means that essential minerals won’t be removed during the RO purification process. Only the harmful hard magnesium and calcium salts, heavy metals and other impurities would be removed. The minerals that are essential and naturally found in water would be left untouched to maintain the TDS level properly.
RO purification is a state-of-the-art technique that is used to eradicate all impurities found in the municipal water supply. This purification technique is ideal for brackish water that has a really high TDS value. RO purifiers are known to remove minerals that shoot up the TDS value. The process of doing so is simple. RO purifiers use reverse osmosis process to get rid of impurities. The water passes through a membrane that is semi-permeable. Due to this, the impurities are unable to go through but pure water passes through with ease. Therefore, one side of the semi-permeable membrane has pure water and the other has the discarded impure water. The impure water flows through a different tube and out of the purifier while the pure water goes further for other purification processes.
Discarded Water Isn’t wasted:
The water that is discarded by the RO purifier can be used for purposes other than drinking. You can use it for mopping the floor, washing utensils, clothes etc. Therefore, you get pure water for drinking as well as water for cleaning purposes. The TDS value is controlled in the drinking water due to which the discarded water has high TDS.
High Purification Capacity:
RO water purifiers have really high purification capacity. They can purify about 15 to 20 liters per hour. This means that there is next to no waiting around time to get pure drinking water. Apart from high purification capacity, these purifiers generally have a storage capacity of minimum 8 liters as well. This allows storage of pure water that is free from high TDS.
RO water purifiers are responsible for maintaining the TDS level, but when it comes to purifying waterborne pathogens it requires special filters or UV radiation lamps. Most RO purifiers have UF membranes or UV lamps along with RO filtration, which keep the waterborne pathogens at bay. UF membranes don’t allow microbes of size more than 0.3 microns through them and UV is deadly to all pathogens.
As RO is a required purification technique to maintain the TDS of drinking water, RO purifiers are the best purifiers for purifying water with high TDS.