abellguy
Member
Where did I say EC was different the ppm??? .5 or .7 that's all you need to know what conversion your meter uses.... You can go check all the papers yourself and what they tell you to do.. Does not matter the fact is it is required to do it. If you dont that's your decision..I will do it the right way.. Your trying to argue that RO wont damage your PH probe when if fact it does.
EC is the accepted standard when speaking about nutrients it requires no more information and is universal, where when speaking PPM you must take into consideration the conversion which most people don't.
As far as RO water I know what the documentation will tell you but what I am giving is my many many years of experience putting it in RO water, it can be taken however you like. In 20 years I have never had a probe go bad cause of RO water and when the guy at the hydro store told me I kept my probe in storage solution and in fact I kept it in RO water that further confirmed any suspicion I might have had cause I wasn't following what the documentation told me to do. It must remain wet this is what is most important