Originally posted by Edwina's Secretary
Those of you who have drinking foundations (with filter and circulating water...)

How often do you change out ALL the water?

(BTW....Edwina finally drinks out of hers exclusively....except when she can con one of us for a drink out of the d$%# humidifier!)
I do mine (Drinkwell with the resevoir) about every 10-12 days - I do a partial breakdown and cleaning.

The only thing I don't like about the fountain is I can't tell how much my cats are drinking exactly. I need to fill the resevoir back up every 3 days or so, I use the filtered water from my fridge.

Once, something got stcuk inside the fountain (either cat food or I suspect a piece of carpet from the cat tree - how in the world they managed that is beyond me) and it messed with the water level - it didn't overflow, but it was right up at the rim of the bowl. I took it totally apart and cleaned the whole kit-and-kaboodle, and it fixed the problem.