Product review (1 stars): If you like to drink carbon, these filters are for you!
I've tried several different types of filters, all which have worked well. I put over 6 gallons of water through this filter and I still see little bits of carbon in the water. The terrible taste is gone (tried it after the 3 gallon recommendation), but no matter how much water I wastefully put through the filter to try and clear the carbon it just doesn't stop coming out. My plants only need so much water...