You're supposed to use sterile water for this. super rare but some crazy stuff gets through tap water that is fine except if you're doing this. look it up if you don't believe me
yeah what the hell? says I can't comment, then still takes me here and I can comment? I sure as hell am not paying these people to be able to comment on a dick joke manga strip.
we always did cell counts by diluting the sample and still manually counting the cells. Of course that just means doing like ~4 counts for a very large sample but it was manual. Of course there are also automatic counters in industry but university classes didn't have that means