Ideally after every cleaning cycle — it takes a minute and keeps suction at full strength. At minimum, clean the filter whenever it looks full, before it restricts flow. During heavy debris season you may need to empty it mid-cycle; a larger-capacity canister lets you go longer between cleanings.
The rule of thumb
Empty and rinse the filter after each run. A filter left full doesn’t just reduce pickup on the next cycle — dried-in debris is harder to remove, breeds odor, and shortens filter life. Building the habit into your after-cycle routine takes about a minute.
Signs it needs cleaning sooner
- Suction is fading partway through a cycle.
- The robot stops picking up debris or leaves it behind.
- A full-filter indicator is lit on the power supply.
- The robot starts to float or won’t hold the wall (a heavy, packed filter changes buoyancy).
Heavy-debris season
Under a lot of trees, or during spring pool opening, you may need to stop and empty the filter mid-cycle. That’s normal — it just means your debris load exceeds the basket size.
Clean less often
If you’re constantly emptying the basket, a MaxBin™ robot with an oversized canister holds far more debris per cycle — fewer stops, more cleaning. See large-capacity options on our robotic pool cleaners page.
