I have tried many water fountains for my cats and this is the worst as far as ease of cleaning. It gets super disgusting and grimey, very quickly. As in a week, when being used by two cats. It comes apart into around 7 pieces? Which is ridiculous. The top piece where the water sits technically, has these almost pinpoint small holes (to let the water up through I assume). These get gunned up very fast and are so difficult to actually clean. I’ve tried soaking it, using different bristled brushes See full review