osmosis water filter systems

Water filtering is increasingly important to families and one of the premier choices in water filtering systems is the reverse osmosis water filters. Such units are considered to be the Cadillac of water filtering, delivering consistently clean and pure water. They can be installed as a whole house water filtering system, or they are also available as smaller units which can be placed under a kitchen sink.

However, even though the reverse osmosis water filters are considered to be the premium way to go, it is helpful to know a bit more about these types of filters before making a purchase. The better you understand the process of reverse osmosis and how that process affects the water in your home, the more you will be equipped to make a wise and informed decision.

All of the reverse osmosis water filters are actually filtering systems that take the water through multiple steps of filtering and purification. In this process, very clean water that is free of contaminants and very-good tasting water is produced. These reverse osmosis water filter systems have three basic parts: the pre-filtration stage, the reverse osmosis membrane and the holding tank.

Pre-Filtration: In this initial stage of the purification process, the largest contaminating particulates and other impurities are removed. This prepares the water to follow through the rest of the reverse osmosis water filters process. In most systems, the pre-filter is a carbon filter or a activated carbon-based filter which must periodically be replaced in order to keep the filtering system in proper working order.

Reverse Osmosis Membrane: This is the second stage that reverse osmosis water filters utilize in the process to make pure and clean drinking water. At this stage, virtually all of the remaining impurities and contaminants are removed by a very fine membrane which the pre-filtered water passes through. Since this membrane is so fine, the water must be passed through it under pressure which ensures that the purified water is able to pass to the other side as clean water. The contaminants and any of the other impurities that were removed are then flushed out as waste water.

Holding Tank: The purified water is held in this tank until such time as it is used for drinking or cooking. This holding tank is an important part of the overall reverse osmosis water filters system because the complete process is rather time consuming and cannot keep up with normal flow demands of a busy kitchen faucet. By having several gallons of filtered drinking water stored, it is ready for use at any time and assures that the water is available upon demand.

Before deciding upon a reverse osmosis water filtering system for you home, it is a good idea to first test the quality of your water by using water test kits. Such a water testing kit will give you an analysis of the overall quality of your water and the types and concentrations of contaminants present. This information will be helpful to you in determining the best reverse osmosis water filter set up for your home.

Another important consideration with these types of systems, is the ready availability of water for use with reverse osmosis water filters. The negative aspect of these powerful systems is that they use a great deal of water to produce one gallon of purified water. About five gallons is needed for each gallon of purified water, while the rest is flushed out of the system as waste water.