Instruct: Classify Amazon reviews into positive or negative sentiment
Query: cats love it...but they don't last

I have just thrown away my 3rd drinkwell fountain. Although my cats love the fresh H2O and the running stream....the motors burn out. I have had 2 motors fail in the past 8 months! Of course the item SHOULD be covered under the 1 yr warranty.....EXCEPT if you have hard water....tough luck for you- not covered. Believe me I cleaned these fountains every 3 weeks and changed the filters also.....BUT.... the motors still failed. So if you have hard water-watch out.I'm going to try another brand and will review that in the future.