nashbar
Well-Known Member
the joys of learning a new hobby 
i'm doing a DWC.
so i guess i kinda spaced out and bought a Hanna 98130 which measures TDS in ppt instead of ppm. i'm usually really careful with researching before buying stuff, so dumb.
i think ppt means parts per thousand since my reading is ppt=0.38. i'm guessing that means i'm actually at ppm=380. the EC is 0.77 mS/cm. which i mixed as a mild solution for some seedlings and newly rooted clones.

i'm doing a DWC.
so i guess i kinda spaced out and bought a Hanna 98130 which measures TDS in ppt instead of ppm. i'm usually really careful with researching before buying stuff, so dumb.
i think ppt means parts per thousand since my reading is ppt=0.38. i'm guessing that means i'm actually at ppm=380. the EC is 0.77 mS/cm. which i mixed as a mild solution for some seedlings and newly rooted clones.