I missed the original post about why bleach was needed, but if it is to disinfect, there is another good option. Rocal-D is a strong product used in dilution (like bleach). We use it especially when we have an outbreak of something like coccidia or giardia and need to keep the floor, bedding, litter area, etc clean. Some vet offices use it, if they don't sell it you can find it online. We bought a gallon size which is expensive, but it's good to have on hand! Risa [Posted in FML 6521]