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Hanna Instruments Canada
Customer Support: (800) 842-6629

Pool Line Electrode Storage Solution (500 mL) - HI703004L


In stock

HI703004L Pool Line Electrode Storage solution is prepared with reagent grade chemicals that can be used to ensure optimum performance of pH and ORP meters. Properly storing your pH electrode in a solution keeps the glass membrane properly hydrated along with the junction that is part of the measurement system. A free-flowing junction allows for fast and stable measurements.

  • Made for the proper storage of any pH or ORP electrode.
  • Clearly marked expiration date and lot number for traceability.
  • Sealed tamper-proof 500 mL bottle to maintain freshness.


HI703004L Pool Line Electrode Storage Solution is a specially formulated storage solution for the proper maintenance of pH and ORP probes when not in use. To optimize the response time it is important to keep the pH bulb hydrated. It is also important to keep the junction of both pH and ORP probes hydrated. All electrodes have a junction that is an electrical pathway between the solution tested and an inner electrode. Keeping this junction hydrated keeps the junction free flowing, which provides for faster and more stable readings.

For process probes the HI703004L should be used to rehydrate the electrode after cleaning the oils and lotions that will coat the sensors over time. After using a cleaning solution the probe should be placed in storage solution for 15 minutes to allow for the hydration layer to reform. After the probe is rehydrated then a calibration must be performed.

A well-maintained swimming pool, hot tub, or spa starts with accurate readings and the proper storage of a pH/ORP electrode is required to ensure maximum performance and long life.

Air tight bottle with tamper-proof seal

  • Ensures quality and freshness of solution

Each bottle marked with lot number and expiration date.

  • Hanna storage solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.

Additional information

Weight 0.45 kg



SKU HI703004L
Name Pool Line Electrode Storage Solution (500 mL) – HI703004L
Description Electrode storage solution
Package Bottle
Quantity 1
Size 500 mL


Pool Line Electrode Storage Solution (500 mL) – HI703004L