U could get a sample of the water and do an experiment by swabbing some on a sterile Petri dish and wait a day to see if anything grows, if something does grow it’s bacteria but if nothing appears a virus since virus can’t cultivate on a petri dish
U could get a sample of the water and do an experiment by swabbing some on a sterile Petri dish and wait a day to see if anything grows, if something does grow it’s bacteria but if nothing appears a virus since virus can’t cultivate on a petri dish