Free, Total, Combined Chlorine and pH Photometer Tests

[@nathangovus9014]

Bit of information I learnt on my PPO course (my tutor was very knowledgeable as he actually wrote the manual) the reason why DPD3 is more difficult to crush is it’s a deterrent to prevent early testing. You’re actually meant to put DPD3 in, leave for 2 minutes AND THEN crush the tablet. Hope that makes pool tests a little easier 😊

[@dwaynecavness2555]

Thank you Sir

[@Bafaw.81]

Hi, so add 5ml of deionised water and 5ml of from the original sample then when you put it in the machine which buttons you press or do you need to setup the machine again?

[@lockyLucania]

Thanks, very usefull!