I don't go by EC to be honest.
I use nutridip trimeters, not sure what factor they use tho.
I also have a handheld tds pen made by milwaukee, but not sure on the conversion either.
If I had to guess I would think the .7, but clearly a shot in the dark.
Maybe I should dig up that info for my own good lol.
I mostly use ppm as a benchmark and let the girls tell me what they want.
I use nutridip trimeters, not sure what factor they use tho.
I also have a handheld tds pen made by milwaukee, but not sure on the conversion either.
If I had to guess I would think the .7, but clearly a shot in the dark.
Maybe I should dig up that info for my own good lol.
I mostly use ppm as a benchmark and let the girls tell me what they want.