Hi I’m Steve Kritz, owner of Douglas Vacuum & Allergy Relief Chicago. Today we are going over when your Belt & Brush roll need to be changed and how you would know it is time. Of coarse there is some varibility as to how long these items last. Howver, the signs they are due for replacement are universal & obvious. If you have any questions or would like other trouble shooting tips, give me a call at 773-281-8227