A man in the kitchen tests tap water quality with a test strip. Home testing for drinking water safety, pH, chlorine, and chemical contaminants.
Keywords
drinking,
cles,
analysis,
safety,
clean,
contaminated,
nitrate,
quality control,
laboratory,
control,
check,
exam,
bromine,
recreation,
alkaline,
neutral,
colours,
colours,
human hand,
technology,
water,
kitchen,
care