Chlorine and pH tests with comparator eidted
31:29
Pool Plant Familiarisation
14:51
Free, Total, Combined Chlorine and pH Photometer Tests
3:53
CHECKIT® Comparator: Visual rapid test of water quality
1:55:27
Worst Fails of the Year | Try Not to Laugh 💩
22:53
Photovoltaïque : Les Dangers Cachés 🔥 et Comment Éviter les Arnaques ⚡
13:20
STA and Lovibond® Pool Water Testing Video
4:48
Using a pH Meter
15:46