PetSafe Drinkwell Platinum Dog and Cat Water Fountain vs PetSafe Multi-Tier Pet Water Fountain

At 168 oz, the PetSafe Drinkwell Platinum Pet Fountain holds enough for several pets, and its automatic refill reservoir snaps onto the back to top the bowl up. Reviewers noted the adjustable free-falling water stream entices pets to drink more, and a built-in carbon filter keeps the water fresh. Most parts go on the dishwasher's top rack; the pump has to be hand washed. It needs to be plugged in, and that separate pump cleaning is an extra chore. Owners who want a reliable automatic fountain with good capacity and filtration are the fit.

The PetSafe Drinkwell Multi-Tier Pet Water Fountain holds 100 ounces and splits it across two bowls at different heights. Reviewers found that especially useful in multi-pet households and for senior dogs or cats that need a raised drinking option. A carbon filter keeps the water fresh, and cleaning is easy as long as you keep up with the maintenance. It isn't completely silent, though most owners called the noise acceptable. Households wanting a low-profile, moderately quiet fountain to encourage hydration should look here.