Image, Stock Photo Close-up of hands pouring water into testing vial for PH value test against pool background

Close-up of hands pouring water into testing vial for PH value test against pool background bottling pool water testing water vial chlorine measure sample hygiene summer investigate alkaline personnel janitor control monitoring filtration clean service kit pump system maintenance filter chemical care algae cleaner resort hotel service worker swimming pool water sample analyzing pool maintenance water quality chemical testing woman pool care test kit chlorine levels ph balance health and safety sanitation ph testing chemical balance ph strips poolside hand ph level test strips