DWC Whats Your PPM Numbers for Veg and for Fruiting

willard3 said:
In aeroponics, 400-600 ppm for all stages of growth
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Does this number include the already present 100-150 ppm that is already in the water before adding nutes, if your using tap? or added to that?
 
Selest said:
Does this number include the already present 100-150 ppm that is already in the water before adding nutes, if your using tap? or added to that?
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Are you using tap water?

PPM is total. And in truth, the only thing that it's good for measuring is TDS. You really want to be measuring EC. That's the only real way to guarantee that your solution is legit.
 
solid7 said:
Are you using tap water?

PPM is total. And in truth, the only thing that it's good for measuring is TDS. You really want to be measuring EC. That's the only real way to guarantee that your solution is legit.
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So it's not accurate or acceptable to use tds->ec type conversion/equivalency for measuring leachate and nutrient sol'n?

Sent from my XT1565 using Tapatalk
 
YAMracer754 said:
So it's not accurate or acceptable to use tds->ec type conversion/equivalency for measuring leachate and nutrient sol'n?

Sent from my XT1565 using Tapatalk
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Yeah, it could be.  What is the conversion algorithm?  Do you know?  Is it done automatically by the device?
 
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