Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works for a month before water loses pressure

They should rename this a disposable water hose filter because it only runs good for a month before the water barely leaks out of the drinking opening. Even when I changed the internal filter, water would still drip rathern then flow. The problem is the faulty engineering, its NOT durable enough to maintain the constant water pressure the sink pipe puts out so its internal canals gradually degrade and will not give you a big volume of water flow through the drinking opening. The same goes for the Brita unit which also works good about 2-3 weeks until the water barely drips out. These faucet units are very sensative to water pressure and any pressure deviation will screw it up permanantley. Stay away from them and get a proven counter top or undersink reverse osmosis unit. BTW i'd give 0 stars if i could. Its completely worthless and should be taken off the shelves. Surprised consumer affairs hasnt filed suit against the makers of these faucet attachments