Instruct: Classify the given review as either positive or negative.
Query: Water runs slower and drips

I've been using pur for about a month, now. Water flow was slow, but ok. But as time passes water flow gets slower and it starts to drip.May be my tap water is dirtier than others (I live in Flushing, NY) that lots of dirty particles are blocking water flow. But still, my tap water is not worst and I expected my filter to last at least two months. But it looks like I have to replace its filter soon, even though indicator says green.Small modification of unit design is needed in order to prevent dripping at very slow water flow.