My cat won't touch still water and two years ago I bought him a water fountain which he drank from regularly. It needed replacing so I got a new one but now he won't go near the thing! He keeps jumping up to the kitchen tap even when I put him in front of the new fountain. He has a diet of (complete) dry food with the occasional fish during the week and I'm worried that he's getting dehydrated. Any tips? I'm fretting!