im in the UK & ive never known anyone to use C.F (EVER)...myself n others use EC because it never changes,some nute makers use the 500 scale n others the 700,that sucks basicly so use EC and you can never run into dramas,the guardian is the best but in reality these are best used with ebb n flow systems as you need to really stay on top of your nutes/ress,if you just fill a ress and feed from that a pen is good enough in reality,great products if a little pricey,they do/will last though !!!
@EnforcerOnHigh
6 жыл бұрын
You got the scale backwards. USA uses the 500 scale and the UK uses the 700 scale. Great products though! I have the Commercial Truncheon and their PH pen. Both are solid performers, if cared for properly.
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