Quote Originally Posted by ddxsinxcosxdx

Im finding that the numbers I came up with just doing each nute in water arent scaling up well. Im doing 5ml calmag, 5 ml LK (giving an extra ml every 2 weeks) and then making up the rest with PBPB or PBPG as necessary. What I am finding is that ppm of 5ml of pbpb is not the same as twice the ppm for 10ml of pbpb, any thoughts? -Not sure I understand this correctly....5ml of pbpb will not have the same ppm of 10ml of pbpb.... Can you rephrase this question or walk me step by step how you are measuring your ppm levels and then ask your question???

I want to get more accurate with my PH now, except I hate my meter, I seem to have to recalibrate it every time I use it. Any ideas why that would be? -What kind of inconsistancies are you experiencing that you feel the need to recalibrate each use???
If you walk me through your steps, then ask your question....I'll be able to help understand where it is that you have misunderstanding....

CGI::::::