How big is her area? Would it be very impractical to just wipe it down by hand with paper towels or rags?
For my buns, I sweep the area daily (or every other day if I’m really honest about it lol), spot clean if there are any pee accidents or water spills, and then probably every week or two I wipe down their pen floor with rag or paper towel and vinegar solution.
If you sweep first and then use a microfiber mop, I don’t think it would build up a lot of bacteria as long as you allow it to dry before you wash it (rather than sitting in a wet heap in a hamper). So you could just rinse it out and then let it dry until you have enough laundry to justify a whole load. Or even hand wash it and hang it to dry?
Not sure what kind of mop you have, but some are set up so that you can even just attach a rag instead of the microfiber mop head if you wanted to use something that would be easier to clean and dry. I used to do this with my swiffer in the past when I got tired of buying the disposable sheets.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.