Measuring TDS

[Tead]

When I measure my TDS, my water comes with a base of 250ppm (yeah... scary.... I know).
If my target is 850ppm per nutrient documentation, should I be shooting for a total TDS reading of 850ppm, or should I be adding the 250ppm base to the 850 for a total of 1100?

 

[Beateo]

Hi Tead! I've posted a link (if it works) that may be of some assistance to you! Good Luck.

What is a TDS meter

 

[Tead]

Read it... answered my question. Thanks BEATO.