Blue Lab PH pens are not good

Star Dog

Star Dog

Well-Known Member
www.westlab.com

What is the correct way to store a pH electrode? Westlab

Correct storage of your pH probes can substantially increase the longevity of the probe saving you time, effort, and money. Here are a few points on how to get the most out of your probes. Firstly, you should make sure you always keep your pH electrode moist, the best solution to submerge the...
www.westlab.com www.westlab.com
.
It is also important that you do not store the pH electrodes in distilled or deionised water as this has little to no ions present and will cause the ions to leach out of the glass bulb and will render your electrode useless.
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Star Dog said:
www.westlab.com

What is the correct way to store a pH electrode? Westlab

Correct storage of your pH probes can substantially increase the longevity of the probe saving you time, effort, and money. Here are a few points on how to get the most out of your probes. Firstly, you should make sure you always keep your pH electrode moist, the best solution to submerge the...
www.westlab.com www.westlab.com
.
It is also important that you do not store the pH electrodes in distilled or deionised water as this has little to no ions present and will cause the ions to leach out of the glass bulb and will render your electrode useless.
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Yep. I was told to never use distilled. Not even to rinse the probe in RO or distilled for the same reason.

Well unless you're making you own KCl storage solution. Then it's KCL and distilled water.
 
rkymtnman

rkymtnman

Well-Known Member
PadawanWarrior said:
Yep. I was told to never use distilled. Not even to rinse the probe in RO or distilled for the same reason.

Well unless you're making you own KCl storage solution. Then it's KCL and distilled water.
Click to expand...
he told me rinse in distilled white vinegar then store in distilled.

oh well
 
PJ Diaz

PJ Diaz

Well-Known Member
twentyeight.threefive said:
So your gripe about the soil pH pen is that it doesn’t have a replaceable tip? Does the Apera with the replaceable tip measure soil pH?
Why exactly would you need a replaceable tip if you care for it properly?
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Things break even when cared for properly. The ability to replace parts vs buy a whole new product is awesome. I hate products which are throwaway as soon as one part breaks.
 
lusidghost

lusidghost

Well-Known Member
My 5 year old Bluelab pen finally died when the thermometer wonked out. I don't know how people are messing up their glass bulbs.
 
Grojak

Grojak

Well-Known Member
rkymtnman said:
milwaukee
Click to expand...
I’ve had my MW-121 (I believe) for almost 10 years, replaced 2 probes and I’m due for another. Mines the old grey version but I’m debating going with a Bluelab instead of replacing probe, to gain the additional EC meter.
 
rkymtnman

rkymtnman

Well-Known Member
Billy the Mountain said:
Supposedly, the ions in the bulb will diffuse out; the 4M KCL keeps things at an equalibrium
I can't picture how glass could be permeable but that's what I've read

So long as you can still calibrate it to get reliable readings, maybe the storage solution is unnecessary or you're lucky
Click to expand...
i adjust it twice a grow. day 1 and then 12/12. it's never off my more than maybe 0.3??? has the nice 2 point calibration which is nice

like i'm saying, i know it's not what you are supposed to do but...???
 
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