Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Problems

Two years into my ownership of this unit. The drain is hopelessly clogged. Whatever water you think you will save is no reason to buy this urinal. Look at your water bill. How much is the rate per THOUSAND gallons? Now figure the cost of the brand-name fluid and the cleaner. Now add the cost of wasted drain opener, a snake, a plumber and, finally, the cost to replace this unit completely and add a new water supply (because you simply need water to flush or it will clog the waste line). I'm waiting for the class action suit on this product. Looks great, works well at first, and then . . . a clogged disappointment. Kohler is a great brand and should be ashamed of this product.