The Household Reverse Osmosis Filtration System: A Brief Overview

Reverse osmosis water filter systems are used widely in households across America. Among other things, reverse osmosis filter systems allow a household to meet EPA water standards. When the TDS of the feed water is too high, using reverse osmosis membranes is the best choice for a homeowner to get quality drinking water. There are few different choices of reverse osmosis water filter systems that can be used in households.

The first type of household reverse osmosis water filter system is installed under the sink. This is the most economical way to get reverse osmosis drinking water. Such a reverse osmosis water filtration system can be equipped with a reverse osmosis membrane that produces 25, 35, 50, 75, 100 or 150 gallons per day, depending upon the model and brand. These reverse osmosis systems feature a compact design and are usually installed under the kitchen sink. They do not treat the water for the whole house. Each reverse osmosis system of this type comes with an additional faucet installed on the kitchen sink next to the standard faucet. The reverse osmosis water produced by this reverse osmosis water filter system is stored in a small storage tank held under pressure and dispensed through the additional faucet.

The second way to bring reverse osmosis quality water to a household is to install a whole house reverse osmosis filtration system. Whole house reverse osmosis systems vary in flow rates, designs and styles. It is highly recommended that a computer projection be performed in order to select the proper reverse osmosis water filter system for each individual house. Based on the unique feed water composition and type of the reverse osmosis membranes and reverse osmosis water filter, a water purification specialist can select the optimal operation parameters (pressure, waste and concentrate recycle flow) to ensure that the reverse osmosis filtration system produces the desired chemical composition of the reverse osmosis water. Pre-treatment is recommended for all reverse osmosis systems, but whole house reverse osmosis systems in particular need a good pre-treatment option to protect the reverse osmosis membranes form dangerous impurities such as chlorine, chloramines, sediments, hardness, silica, etc.