Hanna Instruments BL-123-70 Pool Line Maintenance kit for pH and ORP electrodes
The BL-123-70 kit is an ideal solution for private pools and spas, containing everything required for maintaining pH and ORP electrodes.
Maintaining your pH and ORP electrodes throughout the year is key to extending its life. These ready to use, quick and easy, single-use sachets are universal and can be used with all brands of electrodes.
The single use sachets are easier to carry on site, sealed for freshness, and reduce the risk of contamination that can occur with larger solution bottles.
We recommend using this kit before and after the winter for outdoor pools, or year-round for indoor private pools and spas.
The BL-123-70 kit contains:
- 1 x pH 7.01 Buffer Solution Sachet (20mL) - (HI-700074P to buy separately, 25 x 20ml sachets)
- 1 x pH 4.01 Buffer Solution Sachet (20mL) – (HI-700044P to buy separately, 25 x 20ml sachets)
- 1 x Electrode Cleaning Solution Sachet (20mL) – (HI-7006014P to buy separately, 25 x 20ml sachets)
- 1 x Electrode Storage Solution Sachet (20mL) – (HI-7003004P to buy separately, 25 x 20ml sachets)
- 1 x ORP Test Solution Sachet (20mL) – (HI-700224P to buy separately, 25 x 20ml sachets)
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.