PH Meter meter calibration issue

[UK1Richard]

So am currently struggling to get distilled water and supposedly our equivalent is di ironised water can I use this with the buffer power to calibrate the meter

 

[Zill]

Uk,

You need to a pinch if salt to measure pH in molten hydrogen oxide. You’ll be fine with the de ironized water. You guys got a lot of Fe?

 

[Natep]

I hate ph meters. They are not good for measuring ro water. When you get to have clean water it needs to be measured in mega ohms.