Product review (1 stars): Dubious Filtering at Best
I bought 6 of these filters and regret I made the purchase. There has to be something wrong with a filter that requires the user to flush it out with 3-4 gallons of water before it can, supposedly, yield good filtered water. I tried that method and was frustrated waiting for the water to finally clear up. And then again, how do I know that once it yields clear water it is actually producing " clean water"  and not having some carbon particles unseen to the naked eye. I have my doubts they are filtering water at all. Please keep in mind that just because the water is clear does not mean it has been effectively filtered. The homeowner does not have a method of verifying the quality of the filtration...it is all a matter  of trust. The possibility of ingesting unseen amounts of carbon is a health risk I do not want to take. Additionally, why doesn't the manufacture flush it out before selling them to consumers. I am going back to the GE brand...more expensive, however, I trust GE and I don't have to run 3-4 gallons thru them. I think these Pure Green filters are made in China.  Also, keep in mind that Amazon will not let you return them...that in itself must tell you something.  One Star is generous.