When to change a fountain filter
4 min read · Sippy Paws

A filter sits inside the fountain and needs changing now and then. The question is when.
The honest answer is to follow the maker's note on the pack, and to set a reminder so you do not forget.
Follow the pack
Each filter pack comes with the maker's suggestion for how often to change it. That is the number to follow.
We do not promise a set number of days, because it depends on your fountain and your water.
Set a reminder
Put a note in your phone or on the calendar. Pair it with your cleaning day so both jobs happen together.
Many people find it easiest to change the filter whenever they wash the fountain.
Keep a spare
It helps to keep a spare pack on a shelf. The Fountain Filters, 4 or 8 Pack is a tidy starter, and the 6 or 12 Pack covers you for longer.
Check the filter shape against your fountain before you order. The 6 or 12 pack is listed as compatible with 2.5 L cat fountains.
Getting started
Rinse each new filter before you use it. Then place it in the housing and fill the fountain with fresh water.
If you are unsure about anything, write to us and we will help.
Shop the products in this guide
Questions and answers
Do filters fit any fountain?
Filters fit the fountain named on the product page, so please check before you order.
Do I need to rinse a new filter?
Yes. Rinse before first use, as listed on the product page.
More fountain guides

What is a fountain filter made of?
Plain words about filter media and frames.
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Setting a simple weekly pet water routine
Rinse, refill, change.
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How to clean a pet fountain step by step
Parts, brushes and an easy schedule.
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