Knowledge TEST for the Hydroponic Pros !
So I asked a friend in the US to get this ORP meter from Amazon for me (I live in Southern Africa). I was so excited to get it, I open the box and start reading the manual. IT SAYS, "Condition the ORP electrode by immersing in ORP protection solution for 1 hour" WTF????????
At no place on their website did it state I needed a solution or solutions. Now I have to wait six months for my friend to come over again.
What is this magical solution?
HAS ANYONE WORKED WITH THESE METERS? Thanks.