I bought one of these a while ago. I was very satisfied until I had to put in a new filter. Replacement filters are expensive and I decided to just throw them away and buy a new one, but to avoid adding even more plastic to the environment I bought filters. Great so I go to change the filter and I can't open it. I asked my son in law if he could open it. nope So google the instructions and find out you need to buy their cheap plastic key (poor reviews), again not cheap and some reviewers say flimsy to work with. This brings more than just a new purchase. I hate creating more waste. I live on the coast and the water is terrible. I bought it because I don't want to use plastic bottles and it had good reviews. For now I'm throwing it away and looking for a brand that won't rip me off. I'm really not happy with it.
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