Just awesome. Crystal clear water, no problems with algae. For this price, just great. Bought until now always very expensive products from the hardware store, which is not always the einhielten what they promised. Now even runs the pump only 50 percent (5 hours a day) and the water runs clear. So bathing fun. This product can I only recommend. And that's where I do not like surreptitious advertising. To all, this purchase is really worth. I think I'm coming for several years with the Tabs. Thanks and keep it up.
