Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Leaks incessantly, stops working after 2 days, junk

This product is a piece of junk. It started leaking on day 1 and never stopped. You cannot tighten the screw enough to stop the leakage, even with additional stuffing. The filter stops working after literally 2 days, when the water out of the filter trickles down to nothing. At that point, if you switch to a new filter core, it starts working marginally again for 2 days, and then you have to replace the core again. This is the worst consumer product in the kitchen I have ever used. It never functioned. What a piece of junk!