JBL PROAQUATEST CO2-pH Permanent REFILL
You’ll find answers to the most frequently asked questions in our FAQ section. If you can’t find what you’re looking for here, please don’t hesitate to contact us directly – we’ll be happy to help.
Have you lost your record sheets, used them all up, or need them in another language? _x000D_ In the appendix of this FAQ you will find PDF files for printing them out in German, English and French.
No CO2 is generated when fertilising with so-called liquid carbon. Therefore the test is not able to indicate CO2, which means that the indicator always remains blue! If you add CO2 in gas form you need to increase the amount or the duration.
Ask the JBL Service Team your question.