Instruct: Classify the given Amazon review into its appropriate rating category
Query: Great when not leaking

I have had this water filter for awhile now and at first everything was alright. Then two months ago the attachment to the faucet started leaking. It started with just a small leak around the base, not from the filter housing itself and progressively it has gotten worse to the point now that I have a small waterfall when I turn on my water. The only good thing I can say about this water filter is that the filtered water tastes great and considering that our water comes from the Missouri River that is saying something.