[SoG]

anyone tested the pH variance between
the strips, drops, and a digital pH meter?

im using the GH drops; im sure are inacurate
curious to find out how far off are the results vs. a digital pH meter
anyone run this test?

[MIway]

Not sure bout this one as the major variable is gonna b each person's interpretation of colors... But for what I see as a bright, clear yellow (6.0 for the drops) comes out on a bluelab pH pen as 5.9. Brand new pen, cal'd at 7/4... Just did it right now.p.. On ro water.

Btw, the color print on my drop bottle is wrong... It looks yellow-green as the 6.0 reference, which is really more like 6.5... Low quality print job is my guess. Don't think any two of us truly see the same shade of color anyway.

[SoG]

Thank you MIway, much appreciated!

[Zen Master]

I fucked up a run once cuz my e meter was failing (little by little here and there) and I didn't notice it till it was too late. Had a good Hannah one too. I forget the exact model number but it wasn't a pen.

not the case with my $5 drops tho, those have never let me down.

[SoG]

thank you Zen
makes sense with a digital pH meter for starting baseline
without it; its like shooting in the dark matching colors

[bombadil.360]

I don't pH test at all.

worm castings, coco coir, a little soil and or vermiculite. mostly organic ferts in low dosage. no real need.

[angeldust30]

i think i already gave my opinion about color tests
they aren't stabe
like our friend here earlier stated,each person see's color a bit diffrently
other than that,when it concerncs diffrent degrees of color not brightness but color,the test is faulty
the humen eye is alot less sensitive to color degrees than it is to brightness degrees
and color reflactions change completly under diffrent lights
meaning under the sun a 5.5 reading could look like the color of 6 and vise vursa
flauro lights,incandecent lights
all change the color you see eventually
no degree of instruction under which light to view these colors
in general i don't like the color codes
they don't help me with ec either
i prefer using bluelabs combo meter
it's expensive but it lasts a while until you have to waste any extra money
very effecient,gives you what you need and very reliable
i never compared what i read to the bluelab because it's enough for me to ask 3 friends which ph they think it is and each person says something else
for me,that's useless
in general i already know what my furt blends do to the water
so i know what to expect
the only thing i need to watch for is ec rising(from dirty osmosa filter or such things) other than that i know exactly what hesi's furts should do to the water and if i see the exact readings i know the meter is still accurate

i think the most important thing is to stay with one good meter
that way you learn your water reactions pretty well
i think i can do the same thing almost without the meter with the same success
but having that baby helps me sleep at night

hope that helps
i used both the drops and the strips in the beginning,hate them

[SoG]

tanks guys,
im also used to my Hanna
without it; im a fish out of water
but,,, its back home in CA with the rest of my gear

[Bud+]

הפסים עובדים סבבה, אבל הבעיה היא לקרוא אותם. במיוחד שהדשן צובע את התמיסה.
מדים טובים עובדים טוב יותר ופחות טובים עובדים פחות טוב.
השתמשתי בכל השיטות וכולן נותנות תוצאות מהימנות יחסית לרמת הדיוק של השיטה.