Can found a chemist

ajagunle;1976669 said:
Fantastic explanation PeeJay and thank you Canna for posting!

I would add 2 things;

1. The scale is logarithmic, so 6 is ten times more Acidic than 7 and 5 is a hundred times more Acidic , 4 is a thousand times more Acidic, worth bearing in mind if you drift too far from the ‘Zone’ I think.

2. All our meters measure EC (electrical conductivity) and convert to ppm, each continent or manufacturer appears to use a small variety of conversion factors so comparing each others ppm is not an exact science!


Hope you don’t mind PeeJay and Canna!

:thumb:

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