Out of my depth

[oceanview52]

I dont understand these tds meters if the ph is good shouldnt te ppm and t
Ds also be good

 

[Kongfuzi]

This question doesn’t make any sense. I can’t figure out what you’re asking. If you’re asking if ph and TDS have any relation with either other, they do not. PH only tells you how base or alkaline a given solution is, while PPM tells your parts per million, and TDS is PPM based on the electrical conductivity of the solution.