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Unveiling The Truth about RO: Tank VS Tankless—Which Wins?

by Dr. Jonathan Doyle |

There are basically two types of reverse osmosis water filtration systems for home—one with a drinking water storage tank, and one without it. In a tank reverse osmosis system, drinking water is stored in a tightly sealed container after the filtering process. On the other hand, using a tankless RO system, you can get purified water anytime you want without waiting.

Where there is a comparison, there is a competition, and customers are always looking for the superior option. So, today, we’ll review the pros and cons of buying these two types of RO water systems. Hopefully, this will give you some insight.

Tank reverse osmosis system

Storage tanks were used early in the evolution of the water filter system. During that time, the water purification system was not yet upgraded, leading to rather slow water flow. People usually had to wait for quite a while to get a cup of pure water. Since we cannot get water immediately, why not filter it in advance and then store it in a sealed pressure tank? In this way, people can get water directly from the pressure tank.

Pros:

  1.  Stores water for later use.
  2.  Convenient to get water.
  3.  If the water supply is turned off temporarily, water in the reverse osmosis tankcan get you through that period of time.

Cons:

  1.  Takes time to filter or heat.
  2.  Takes up space. Carefully consider the size of your kitchen sink before buying this kind of RO filtration system.
  3.  Secondary pollutants stemming from the sealed pressure tank.

Tankless reverse osmosis system

The low flow rate of the tank reverse osmosis water system cannot eliminate the problem of having to wait too long for RO water. As our standard of living improves, filter dealers have launched an upgraded RO water filtration with high storage capacity—and no tank. The biggest advantage of this drinking water filtration system is that it eliminates the pressure container, which saves a significant amount of under-sink space, and eliminates secondary pollution caused by the storage tank.

Pros:

  1.  Much smaller. No need for a large amount of space under the kitchen sink.
  2.  No storage tank. Secondary pollution problem solved!
  3.  Refreshing water. Get water within seconds anytime you want.

Cons:

More expensive than an RO water filter system with a tank.

As one of the first smart RO systems on the U.S. market, Waterdrop reverse osmosis system features a tankless design with composite filters. This filtration with top effectiveness provides a massive quantity of refreshing, pure reverse osmosis water. This RO unit easily fits beneath the sink to save space while adopting advanced filtration technology beyond anyone’s expectations. Tanks found in most conventional reverse osmosis filter systems are breeding grounds for an array of bacteria. Waterdrop reverse osmosis water filter system offers a tankless design with a dual purpose—saving space and removing the places where bacteria reproduce.

Waterdrop water filter system for kitchen sink has been tested and certified by NSF International against NSF/ANSI Standard 58. This RO under-sink water filter system has passed more than 400 chemical lab tests, proving that it can filter out bisphenol A, benzene, cadmium, formaldehyde, and lead, among many others. This water treatment system uses a reverse osmosis membrane. With a filter pore size of 0.0001 μm, reverse osmosis technology makes the product capable of removing the majority of contaminants found in tap water, including heavy metals, bacteria, viruses, chemicals, and TDS. This RO water system displays the filter life and TDS value in real-time through a variety of sensors, making the process of reverse osmosis filter replacement easier.

Check this link to learn more about our best reverse osmosis systems.

 

 

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