I've got 4 large C&C cages, all spot cleaned once a day, Fleece from hidey houses washed, hay boxes cleaned and refreshed everyday.
I do a full clean of each cage every other day, so I wash 2 cage bedding one day, 2 cages the next.
It is time comsuming and my washer works harder for the piggies bedding than my family clothes. But I find it very satifying to see sweet smelling clean fleecey cages - although it lasts all of 10 minutes. rolleyes
I've washed fleece bedding, towels, inco pads for over 2 years, never had a problem with the washer, a good shake outside and a quick brush.
My washer filter screws out from the front so every week I check it and remove any hay strands.