the calibration and storage solutions are disposable or is it possible to

hello, are the calibration and storage solutions single use or can they be used over several seasons?

Hello, they can be used for several years because the bottles have a screw cap.

thank you

Good day

which storage solution should take for a Digi PH probe?

One moment please

https: // probe-ph-redox- piscine.fr/solution- calibrating-buffer-swimming pool / 622- wintering-solution-for- ph-redox-probe.html

ok thank you good day

daytime