Available water sources do not always provide the appropriate water quality or water taste. One of the most affordable solutions to ensure the best water quality and improve the taste is to use a reverse osmosis system. Based on the model and brand, an under-the-sink reverse osmosis system can have from three to seven stages of filtration with a few different options for the reverse osmosis membrane capacity. The under-the-sink reverse osmosis systems usually use reverse osmosis membranes that produce 25, 35, 50, 75, 100 or 150 gallons per day. These reverse osmosis membranes are designed specifically for use in the household with under-the-sink reverse osmosis systems. These reverse osmosis systems have all the important steps of filtration before the reverse osmosis membrane and after the reverse osmosis membrane. The reverse osmosis membrane is usually the most expensive consumable part of the reverse osmosis system and needs to be protected by inexpensive sediment and carbon filters. The sediment filter provides protection for the RO membrane by reducing the amount of particles in the feed water and reduces the risk of erosion on the membrane in reverse osmosis systems. The micron rating of the sediment filter can be 50, 25, 20, 10, 5 or 1 micron. With durable RO membrane housing, you can ensure that these filters and the membrane itself are not compromised by external factors.
A carbon filter is needed to protect the reverse osmosis membrane from contact with chlorine and chloramines in the feed water. Contact with active chlorine is very dangerous for reverse osmosis membranes because active chlorine ions in the water chemically break down the membrane material. A carbon block is usually placed just before the reverse osmosis membrane in the reverse osmosis system. Sometimes, the reverse osmosis systems have only a carbon block as a pre-treatment and no sediment filter. In this case, the carbon block works also as sediment filter.