Young swimmer testing pool water temperature before diving in
Lab assistant testing water quality
Lab assistant testing water quality
Lab assistant testing water quality
Woman testing water temperature at luxury spa day
A little girl tests water using test tubes and a microscope
Glass of water next to chlorine test colorimeter
a pure water test, drop liquid sample from pipette to the test tube in the laboratory
a pure water test, drop liquid sample from pipette to the test tube in the laboratory
Swimming Pool Water Chlorine and PH Level Test
Closeup shot of water testing sample reagents with a syringe on the white background
Lab technician doing chemical analysis. Testing chemical composition of the water
View along a groyne built out of rocks onto the ocean.
Awoman sitting at the water's edge paddling her feet in the stream.
Lab technician doing chemical analysis. Testing chemical composition of the water
A woman in a white dress in shallow water at dusk
A woman in a black swimsuit wading into a calm lake in the mountains.
A woman in a black swimsuit wading into a calm lake in the mountains.
View along a groyne built out of rocks onto the ocean.
A woman in a black swimsuit wading into a calm lake in the mountains.
A woman in a white dress in shallow water at dusk
A woman standing in a lake in summer. Taking a photograph.
A girl in a straw hat paddling in the shallow waters of a mountain lake.
A couple holding hands, paddling in shallow water at the lake.
A family, parents and son spending time together by a lake in summer.
A woman in a black swimsuit wading into a calm lake in the mountains.
A couple holding hands, paddling in shallow water at the lake.
A person sitting on a bench with her feet in the shallow water of a pool, making ripples.
A girl in a straw hat paddling in the shallow waters of a mountain lake.
A young man standing at the end of a wooden pier on a lake in Torres del Paine National Park, Chile.
