I don't really need this for my cats - they don't drink enough to warrant buying this accessory.

Pros: gives a supply of water

Cons: needs cleaning

My cats love sticking there paws in the water flow. I love knowing that the waster is constantly being filtered. I have a male cat with UTI problems and it is important that he always drinks plenty of water - he loves drinking from the fountain.

Pros: Keeps the water fresh

Cons: Expensive and tough to clean

I love these, a must have in a busy multi pet home. Just don't drop it, they shatter quite easily! Has eliminated any UTi, urinary tract problems in my cats and holds enough water for 24 hours if you have to be away. (With several cats 10+)

Pros: Easy to use

Cons: Don't drop it!!

a must have for your fountain my cats drink a lot now

Pros: helps with refilling

Cons: none

This works perfectly for us!

Pros: Holds large amount, easy to fill and replace on unit

Cons: none