Hello Rob I am sorry to hear about that Terrible practical experience you endured. Regarding your dilemma, gravity feeders are functional as you don’t need batteries or difficult units for them to operate, on the other hand most gravity feeders will need a little bit shaking Every now and then https://alexiswitjj.buyoutblog.com/37602351/helping-the-others-realize-the-advantages-of-royal-canin-cat-food-dry