Reverse
osmosis (RO) membranes are often touted as one of the most effective water
filtration systems out on the market today. In fact, you or some of your
friends may have have water filtration systems at home that come with RO
membranes. However, these efficient membranes also have shelf lives like every
other machine and must be replaced at some point in the future. You can even do
the replacement check yourself.