We change the filters in ours about every two to three weeks.
answered 2 years, 6 months ago
4out of 4found this answer helpful.
They give you recommendations on the package, but you can rinse it off about two times before you put a new one in there and stick it back in, so I only replace mine about every three weeks or so. A lot depends on how clean you keep your fountain too. The cleaner you keep your fountain, the less often you will have to change the filters.
answered 2 years, 9 months ago
1out of 1found this answer helpful.
I change it when it starts to look slimy, maybe every 4 months... They are really expensive, so I try to make them last as long as possible. When I clean the fountain, once every two weeks, I also rinse the filter.
answered 3 years ago
4out of 5found this answer helpful.
answered 3 years, 7 months ago
East Lansing, MI
2out of 3found this answer helpful.