pH meter not accurate with distilled water

Zcomfort

Active Member

Jul 20, 2010

• #1

i have a milwaukee meter that want give me a reading, it starts at 8.0 and with every spin it goes down a point. Now had cheap meter that did the same thing. does anybody know what is wrong?

 

ohnothimagin

Well-Known Member

Jul 20, 2010

• #2

I use the Milwaukee meter too. Did you calibrate it using the calibration solution and the small screwdriver? Distilled water usually displays a reading of 7.0 after calibration.

 

trichlone fiend

New Member

Jul 20, 2010

• #3

...imo, I've got 3 different meters, 1 milwaukee and 2 bluelabs...and they are all pain in the asses!
...now a days, I use the General Hydroponics liquid pH test kit....it's cheap, and it doesn't need calibrated.
I found myself using the liquid kit to double check the meters...now I only use the liquid kit.

 

krozone

Well-Known Member

Jul 20, 2010

• #4

When I use distilled water I don't bother checking the PH value (in DWC). When I've checked it in the past, it's always been around 7.

Sorry if that doesn't help at all.

Good luck!

 

bLITzkRIEg420

Active Member

Jul 20, 2010

• #5

Is it the milwaukee 600? Had the same pen and it's crap! Go to DH http://www.discount-hydro.com/productdisp.php?pid=601&navid=13 and check out the Hanna pHep4 pH/Temperature Waterproof Pen... Have been using it and I'm very happy with it.

 

Zcomfort

Active Member

Jul 20, 2010

• #6

yes i know the pH600 is peice thats y i got the pH51. the hannah may work 4u, but heard otherwise from others including albfuck. thanks 4 ur responses, but come on have i calibrated it, yes. i guess there r dummies out there that wouldn't have. keep it coming please sirs and maams.

 

mRIZO

Active Member

Nov 11, 2011

• #7

my ph600 had its life cut short for being a P.O.S.
i found i was double checking it all the time too with a liquid kit.
now, thats all i use too.
my ph600 didnt even come with calibration solution...i had to get my own.