- Premium licenseMore info
- File type:JPGHow to edit?
- Any issue found?
Checking the water quality of a pool with the help of a test strip with PH value chlorine and algaecide
Related tags:
- pool background
- pool water
- pool
- chlorine
- swimming pool
- summer pool
- quality check
- test
- summer water
- ph
- exam test
- test paper
- quality control
- swimming
- water background
- maintenance
- blue water
- maintenance service
- water
- chemical background
- clean water
- exam
- chemistry
- exam paper
- measurement
- chemical
- chemistry background
- skin background
- tape measure
- tools background
- clean
- blue paper
- checklist
- maintenance tools
- balance
