We were absolutely disappointed with this pack of 12 ZeroWater filters. After ordering them and receiving them on time, we installed the first of the twelve filters in the pack. When it came time to pour water into the coffee maker, only a small amount of water had passed through the filter after about 10 hours. We didn't know if we broke anything, so we checked the jug and filter again. Everything was good. Then add more water at the top to send it through the filter. The same thing happened. After that I felt it necessary to look at more than the first 10 reviews to see what might be going on. Judging by many recent reviews, filters are rubbish. I would have to agree. One person suggested a way to fix a bubble that might form in the filter. Sorry I didn't spend money on new filters just to have them fixed. Especially since they are too expensive to start with, and also a good way to make filters brackish before they wear out is to put a layer of acidic material inside the filter. Send back, buy filters again from a local source.
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