The material of the tank is what makes the best water purifiers different from average models. With tanks made from copper, stainless steel, and plastic (Polypropylene), these water filters from top ...

But should you buy a typical tank-based RO system or a newer tankless RO system like the ones made by Waterdrop Filter? I have tons of experience with both types of water filter systems ...

A measure of how effectively the filter removed flavor taints, along with the resulting odor taints, that CR added to plain water with minimal intrinsic flavor and odor (the "control" water).