when to replace crb brushes?

[shuja11714]

I am noticing from last week that prespray chemical is dripping off from crb machine, is it time to replace the brushes or it is being caused by some other factor. I am not over spraying
pl advice

thanks

[encapman]

I'm not sure how worn brushes would affect pre-spray drippage. Can you provide more info?

BTW There is a guide (decal) on the side of the machine that can help you to determine the brush wear.