Why does my RYOBI Wet & Dry Vacuum have poor/no suction?

If your RYOBI Wet & Dry Vacuum has poor or no suction, it may be because:

• The filter is dirty and needs to be cleaned, or the bag needs to be emptied. See: How to clean your RYOBI Wet & Dry Vacuum & filter
• The filter is too old & needs to be replaced - the following filters are suitable to purchase from your local Bunnings store: 
  • PowerFit Cartridge Filter
  • PowerFit Washable Cartridge Filters
  • Powerfit HEPA13 Cartridge Filter
  • PowerFit Cloth Pre-filter
  • PowerFit Heavy Duty Foam Filter