We go through one filter a month after moving to an area with hard water. Sometimes the filters are slower and require air bubble releasing, other times they are smooth (we check consistently for any leaks or structural issues). Seems to just depend on which one you get out of the box!
Although these filters are a bit expensive, they really work well. The savings can add up if you buy the filters in bulk quantity. I highly recommend this product.
I love having clean water available all the time. This works really well. I put a few ice cubes in the top part (so as it melts they get filtered too) when I refill so the water is cold when I need to refill my glass!
The filters work great, I just wish they lasted longer. I'm averaging 7-10 days out of each.
Response from CulliganBy CH, 1, June 1, 2021
Thank you for contacting ZeroWater. We empathize with your situation and we have spoken with many customers with this issue. Some of our customers have used other, traditional filtration systems to treat the water prior to filtering through a Zero Water filter, in many cases that will cut the TDS level down enough to make the use of Zero Water more economical. There is very little we can do to extend the life of our filters when the water supply is so high in TDS. Our filters are designed to remove over 99% of dissolved solids; in areas with high TDS readings filter life will be short. Coupons can be printed at https://cdn.shopify.com/s/files/1/0311/5499/5336/files/ZW-200416_coupon-sheet_eng_print.pdf?v=1601418403