I bought this for my 5 Dogs, 1 Cat, and Pot Belly Pig. My pig always knocks over his water bowls and this one is a little top heavy when the water tank reserve is filled. He has NOT knocked it over. I love how large the reserve is. Having so many animals I always run out of water and with this I will NOT. The pump is very quiet which is also nice. I am very happy so far with this waterer.

Pros: Filters water at all times, Large Reserve, Large bowl

Cons: Top Heavy

This would be a great product if my 2 dogs who were abused could use it! Every time it bubbles they freak out and run from it! The other dog doesn't mind at all.

Pros: Great if your dogs are not scared of it

Cons: 2 of my 3 dogs are scared of it

When I first bought, I thought this was the one that would solve my problems. First, this unit is quite pricey, difficult to clean, Clean water does not last long. It clogs up which limits the flow of fresh water. It is quite durable and does hold a lot of water in its resevior but it winds be a waste if the system can't stay clean for a lenghty period of time.

Pros: Durable, Large reserve tank, fairly quiet

Cons: Fresh water lasts for a couple of days, clogs up easliy