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- Blue dream
to get the substrate to read 5.8 with the A8 i had to water at like 5.3. and i have found out that ph will change at depths usually gets more acidic the deeper you go in my experiance. i try to insert the probe in the center of the pot close as possible to the rootball without damaging it. and i have used it in coco before and it worked properly... maybe its on its way out(the meter)?I don't know exactly why coco is causing such a off reading at 6.4,... how did you get that 5.8 reading for in-pot pH? Is that the run-off pH? ... pH will change at different depths too,... As for coco itself, I haven't seen anything from CW products co/ that says the A8 shouldn't be used in coco,... other folks seemed to have it work OK for them,
yeah i let em dry for a while before testing. im going to have to get some distilled water because all i have is my tap water which is close to RO but not real RO for the slurry test.I know for sure regardless of the medium, if it's too wet or dry, the meter will not read accurately; coco is prone to that in particular because of the huge water holding capacity it has,... You want to try a confirmation test?
it may be in .2 incriments but it will endup inbetween the hash marks and i take that as a .1 I.E. 5.9I know the A8 isn't the best for accuracy at +/-0.2, but it's usually close enough to help determine next course of action,... keep in mind that indeed, decimals matter with pH!
haha i got that saved as a pdf in a phoneOh, I found this instruction manual as well,...
the A8 has saved my grows before so i know it was worth the investment just may need a new one when i get money