I bought this dispenser and was initially very happy with it.  But after just two months the water started emitting a horrible odor and tasted very strange.  After doing some research I realized it was the filter chemicals that was causing both the taste and smell.  Keep in mind that I am a single person who is rarely home so the usage of my filter was nothing compared to a family with kids.  So if this happened to my filter after two months I can just imagine how quickly it would happen to a family.  And the Zero filters aren’t exactly cheap.  Yes, I get it that all of the compounds add up to the most dissolved solids in the water compared to competitors but it’s just way too costly and high maintenance for me.  And the smell and taste literally made me nauseous.  So disappointed that there isn’t some kind of warning on the box.  That’s about $40 I’ll never see again.  Back to Pur.