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Bluelab KCI pH Storage Solution
The Bluelab KCl pH Probe Storage Solution is a potassium chloride solution formulated specifically for storing and maintaining pH probes between uses. It is used within the probe storage cap to keep the probe tip hydrated, which is essential for maintaining probe performance and measurement reliability.
Bluelab specifies that pH probes must always be kept moist and should never be stored dry. This solution provides the correct ionic environment for the probe tip, helping preserve its functionality and ensuring it remains ready for calibration and use. It is suitable for use with all Bluelab pH probes and pH pens.
Regular use of KCl storage solution forms part of standard probe care, supporting consistent readings and extending the working life of the probe when used as directed.

Pure KCl formula
Matches probe gel strength
Maintains hydration
For all pH probes
Supports probe care
Helps protect probe tips
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Bluelab KCI pH Storage Solution
Key Highlights
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- Formulated for use with Bluelab pH probes and pH pens.
- Used to keep pH probes in ideal conditions while not in use.
- Helps keep the probe tip hydrated during storage and between readings.
- Contains pure KCl at the same mix strength as the gel inside Bluelab pH probes.
- Forms part of Bluelab’s recommended pH probe care and maintenance routine.
Directions for Use
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- Add KCl storage solution to the probe storage cap so the probe tip remains covered during storage.
- After use, rinse the probe in fresh water and return it to the storage cap with KCl solution.
- For hydration, add enough KCl storage solution to submerge the probe tip and leave to soak for 24 hours.
- Do not store, soak or rinse the probe in RO, distilled or de-ionised water.
- Check the storage cap regularly and add a few drops more if the sponge or cap has dried out.
Typical Analysis
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Potassium Chloride
Resources
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Shipping & Returns
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We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: 18 ml
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Bluelab KCl Storage Solution is a concentrated potassium chloride solution designed to keep pH probes hydrated and working correctly.
There is not a lot to say beyond that, it works effectively and is essential for preventing the probe from drying out. Unlike plain water, the KCl solution also helps prevent the internal electrolyte from being diluted or drawn out through the probe’s reference junction, helping maintain accurate readings and extend the probe’s lifespan.
For transparency, I am the owner of Hydro Oasis. This is the solution I personally use for maintaining pH probes, and it does exactly what it is intended to do.