Hanna Instruments HI-7003004P Pool Line Storage Solution for pH/ORP electrodes 25 x 20ml sachets
Ensure maximum performance of your pH and ORP electrodes for excellent Pool, Spa and Hot tub water testing with Hanna's specially formulated storage solution.
HI-7003004P Pool Line Storage Solution for pH/ORP electrodes 25 x 20ml sachets
HI-7003004P is a Pool Line storage solution prepared with reagent grade chemicals which can be used to ensure maximum performance of your pH and ORP electrodes for excellent Pool, Spa and Hot tub water testing.
After cleaning your electrode with the cleaning solutions, rinse with tap water, then soak the electrode in Hanna’s specially formulated Storage Solution before taking measurements. pH 4.01 or pH 7.01 buffer solution can be used if Storage Solution is running low. Check out our Pool Line range.
Between measurements, storage solutions minimise microbial growth and prevent any effects of diffusion and Osmosis, as well as keeping the sensor tip and reference junction hydrated and clear – all important for an optimum response time and measurement in a pool, spa and hot tub environment.
Air-tight sachets with tamper-proof seals ensure quality and freshness of storage solution. Each sachet is marked with a batch number and expiry date.
Please note:
pH or Oxide Reduction Potential (ORP) electrodes should never be stored in distilled or deionised water as it will shorten the life of the sensor.
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.