My weekend project is to powerspray the mold off from under the soffit overhang of the house. (Does that make sense?) Concern is that it will all be washed into the yard where my hens are. We all know that any puddle of water is much more appealing than their clean water container. So could this be dangerous for them to drink. Can I dilute the mold enough that it wouldn't be a problem? Any thoughts or suggestions? Was also considering spraying bleach mixture up there but have the same concerns.