How do you notice to change MIcro Beast Pads?

[Bernd]

I have some kind of Micro Beast Pads and they work quite good...i think not as good as the original ones from ES... My question...how do you notice when to change the pads or change the side? When using the SuperZorb it is clear...

Has anyone any kind of advice?

[encapman]

Of course there are variables depending on the soil load in the carpet. But as a general rule - most of the time, you can clean somewhere in the range of 300-500 sq ft, before flipping the MicroBeast bonnet over (or replacing it).