Hand holding a container to collect a water sample from a pool for a pH test

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Size: 9393px × 6007px
Location: Europe
Photo credit: © rcphotostock / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: algae, alkaline, analyzing, balance, care, chemical, chlorine, clean, cleaner, control, filter, filtration, hand, health, hotel, hygiene, investigate, janitor, kit, level, levels, maintenance, measure, monitoring, personnel, ph, pool, poolside, pump, quality, resort, safety, sample, sanitation, service, strips, summer, swimming, system, test, testing, treatment, water, woman, worker