DrTentgrow
New Member
Hello I have a blue labs E.C and pH combo meter and my pH probes don't last very long and they are £60 a pop! I have got through 3 pens in 4 grows! and for such a pricey meter and probes I would expect more, I keep it calibrated and cleaned and also kept in pH 4 buffer solution which is advised in the instructions.
Anyone experiencing similar problems?
Anyone experiencing similar problems?