PH calibration solution, HELP!

I'm going to go to the hydro store in about an houre, and need to get some calibration fluid, but I dont have my PH meter yet... does that matter?
WHAT KIND OF CALIBRATION LIQUID DO i NEED??? does it matter???

bumb !!!!!!1

how do you know you need the fluid if you dont have a meter yet?

go to an aquarium shop its cheaper its called ph down and i think all it is is just sulfuric acid

or ph up if your ph is low normally but i bet it will be high and once you have ph down you can use tap water as ph up if need be like if you add too much down

Those are both good points, PH down is likely all you will ever need...but how do you know if your ph is off if you have no meter?

Chronic Connoisseur said:

how do you know you need the fluid if you dont have a meter yet?

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because it says meter does not come calibrated, and it dosnt mention calibration dluid. I sent him a mesage saying does it come with any? if not what kind do i need, and he didnt reply. and its been 2 weeks 3 days, and he just today sent me my tracking number, and it should be here today or tomorow,

haha!!!, I have both PH up and down, and I have litmus papers, and ph testing solution... but I never use the PH solution, its soo hard, so I said if its a pen, I can ph my water all day

I'm leaving in 15 minutes,
should I just buy the PH solution at 7.0?

just use the dropper of blue shit looks like iodine but im nto sure what it is

put some water in the vial drop 1 drop of the blue shit into it and wait a couple seconds depending on the color of the water you will have your ph then adjust with ph up or down accordingly

put nutes in water before you measure ph also

thats what I've been doing... but stooped doing it after a month... than I got litmus papers, and I stopped using that
I went to the store and I bought PH reference solution at PH 4.01, and 7.0, she told me to calibrate with the 4.01, and than test with the 7.0

hmm i dont know what ph reference solution is but the blue liquid dropper works just fine
lazy stoners

someone plz explain how calibration solution works and how it affects the pen to take an accurate read ?

thanks in advance.

well the most pens come uncalibrated, so if you put it in a calibration fluid that has a known ph of 6, and your pen says anything other than 6 when its in there you know you need to calibrate it, so you tell it that it is in ph of 6.0 and it rememebers what that feels like and uses that yo properly reed the ph of any given liquid

its like calibrating a scale, when you buy an incredibly acurate scale they usualy come with calibration weights, you pt the weight on the scale and ajust it until it reads the right amount.