I have a small dog with white hair who sheds ALL year round. I sweep my floors all the time but hair goes everywhere, including my water, and i have seen many things floating in there, dirt, hair, god knows what, but i always pour it in the same, dont seem to hurt em, but i am not an expert.
Like I said i mix it in a gallon jug. It has the cap on it and I keep it away from the light. Today I noticed some shit floating around in it, just wondered if it was still ok to use. Didnt know if shit could grow in there??