Hello hooverman:
If I recall correctly, this is the 3rd filter I'm on with my FM which is over 5 years old. I wash and air dry after each use.
If you use the FM to dry clean before washing, clean the filter before washing and wet pick up.
When I purchased extra filters years ago I believe I paid $9 each.
When you are in the wet pick up mode ensure that the switch is engaged correctly. The switch may be between wash and wet pick up modes. Brushes should not spin in wet mode but sometimes will not spin even if not engaged correctly in the mode [tell tale water puddles left on the floor]. Also, take more time passing over in the wet pick up mode if water is still present on the floors and tile after wet pick up. I find the result leaves floors about 90 percent dry.
I opine the adequacy [lack thereof] of the FM in dry mode pick up crosses over to the wet mode pick. Adequate but not the best.
Carmine D.
This message was modified Jan 15, 2010 by CarmineD