Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Trickle Down Theory

With a new filter, it works for a day, and with each use the water comes out slower every time. I have tried 3 new filters, same results every time. Maybe my water has too many mineral deposits and I need something more powerful.With the last filter I used, the water trickled out from the beginning. I have removed the filter and put it back on, thinking maybe I did something wrong (its an easy installation, so I doubt it).My advice: Save your receipt if you want to try this! Its just not worth it. In what you pay in filters, you could probably get bottled water DELIVERED.