Do those using a pH meter store it in a storage solution?

[growsomebuds]

Do those using a pH meter store it in a storage solution? I May have read somewhere on this site that you can use your calibration buffer solution for in-between-usage storage.

[Mr.furley]

I keep mine in the calibration solution when not in use.

[Toker1]

No sir. KOH is what you are looking for storage solutions. It’s actually better to store in plain tap water rather than a calibration solution.

[Toker1]

RO and DI water will cause the ions to leave the glass bulb over time. Eventually the meter will not calibrate.

[Bengfan]

You hit the nail on the head then because just recently(yesterday) I could not get to calibrate. So, back to the drawing board. Thanks buddy!

[Toker1]

You got it. After PH check, I rinse line with DI water then store it in KCl they last a long time when stored properly.

[s62]

I use a Blue Labs pen, and I store it in Blue Labs storage solution.

[growsomebuds]

No sir. KOH is what you are looking for storage solutions. It’s actually better to store in plain tap water rather than a calibration solution.

So, is my well water, which is hard, OK for storing my pen? I've been ignorant by leaving the cap off frequently to dry out.

[Toker1]

No. KOH is what you want for storage. But yes, well water works better than calibration solution.
To make your meter last longer, get KOH storage solution.

[growsomebuds]

I use a Blue Labs pen, and I store it in Blue Labs storage solution.

Does your storage solution have only so many days of storing your pen before you dump it out, and replace w/ fresh solution? Or, do you just keep adding more as it slowly evaporates?

[Toker1]

I rinse mine with deionized water & I dump my KOH solution out and refill after every PH test. If I don’t use my pen for a while I have to refill every so often. I never let my bulb go dry.

[s62]

At least every five days, I shake the cap out and put in new storage solution. It calls for five drops.

[growsomebuds]

Thanks for the tip, Toker1.

[growsomebuds]

Does your storage solution have only so many days of storing your pen before you dump it out, and replace w/ fresh solution? Or, do you just keep adding more as it slowly evaporates?

@ Toker1, where are you getting your deionized water. Supermarket?

[Toker1]

On amazon

[Canuck147]

Blue Lab pen stored in its solution - I keep mine standing up.

[growsomebuds]

Blue Lab pen stored in its solution - I keep mine standing up.

Do you mean storage solution, or something else?

[Canuck147]

Storage solution - standing in its box.

[Toker1]

Blue lab PH pens require hydration in KCL according to the manufacturer.

https://www.getbluelab.com/site/bluelabassist/files/Product%20Manuals/pH%20Pen/Bluelab-pHPen-ManualENG-JAN17.pdf

[s62]

That’s why I stick to Blue Lab specific storage solution.

[Toker1]

Sorry guys storage solution is KCL not KOH. Must have smoked way to much last night. Lol

[growsomebuds]

Is there a storage solution that you make from a powder or drops? If so, what kind of water is used? BTW, my pen arrives today, Sunday, via USPS, if you can believe that.

[Sra1369]

Other than storing Bluelab pen in solution has anyone ever placed it in the fridge to store? I don’t want it to get to hot at any point and I have a mini fridge close by I could store it in if this is ok? Or is this not the best idea? Thanks

[Mr.furley]

They don't store them in a fridge in the store is the only logical example I can think of.