Bests & Worsts Reviews from Amazon

Only 5 stars? Where's the 10th?? I think this product just changed my life. I've only used it once, so keep that in mind. I have a 20 gal planted tank that i have to change 50% every week. Running the output to the sink. Awesome! Running the return back to the tank. Awesome!! I added Prime and adjusted ph as the new water went in. Fish did FINE. no problems. And best of all NO BUCKETS!! No. Buckets. Only caution is if you do a deep gravel vac you don't want to suck up anything you don't want going down the drain (I have a disposal) like a rock that might sneak through.