Pool worker checks the pool for safety Measurement of chlorine and PH of a pool
Related tags:
- pool water
- pool
- clear
- water
- blue water
- transparent water
- test tube
- background water
- chemistry lab
- clean water
- resort
- chemical
- cleaning
- chemical lab
- summer water
- clean
- chemistry
- clean house
- cleaning service
- lab
- laboratory
- swimming
- cleaning house
- cleaning equipment
- home service
- lab test
- background blue
- plastic
- transparent
- tube
- liquid
- blue
- tropical
- blue color
- measure
