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Old 06-29-2009, 08:33 AM   #12
Luke Highwalker
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Quote:
Originally Posted by Winston Smith View Post
But what if the applied nutrients lower the solution's pH to, say, 5.8 or 5.6 for soil grows, and you need to bring it up to 6.2-6.4? Your water is steady at say 7.0 but the bloom feed now brings it to 5.8 rather than the 6.2 the veg nutes lowered it to.

Still no to the mix/match on adjusters? What's the alternative?

Jus' curious...
i dont think i understand what you are asking....but i will try.

often i have plants in soil and hydro at the same time, so i will mix a batch of nutes. usually it self ph's to something suitable for hydro but low for soil.

i will take soda bottles or whatever, and fill them with the nute solution until i have enough for the hydro plants, then i take the rest and adjust the ph to suit my soil plants.

ph up and down are polar opposites. rumor has it if you mix them together in concentrated form that will outgas/explode. no idea if this is true...but lots of chemicals react violently with each other. esp ones that are total opposites...i never took chemistry so i apologize for my simple thinking.

ph up and down are pretty strong buffers...once added to a soution they wont want to let the ph swing in the opposite direction...so you might find a ph that normally takes 2 drops of up to correct, if there is a little down in the water it might take you 10 or 20 drops to correct the ph the same amount....

everytime i end up using alot of ph adjuster the plants come out looking like total shit. from my own experience i have learned that if i mess up a mix, its just better to dump out and start over...instead of feeding my plants some messed up god knows what mix just cause im cheap and lazy.
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The Following 3 Users Say Thank You to Luke Highwalker For This Useful Post:
Diamond Dave (06-30-2009), nigel (06-29-2009), Winston Smith (06-30-2009)