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ph up question

cyberaktif

cyberaktif

New member
when adding ph up does it usually take quite a bit more to bring the ph up? Seems like with ph down it drops with little effort.
 
Good question...I don't know but...a caution- if you have already pHd down and need to go up you have to start from scratch can't do both at one time. Don't suspect that is the case but saying it anyway :) hope someone pipes in OR you could test it: 2 individual gallons of water...add same ml amount of up and down to each & see what happens.
best regards:)
 
Forgot where I read it (probably on GWE) but it did say it will take a lot more pH UP to raise a gallon than it does to use pH down to lower a gallon.
HTH
 
drewman1229 said:
I use a little baking soda to raise ph!
Click to expand...

I was wondering if that would work. Is it OK for a Water Farm? I have two sinks I get water from. One consistently tests about 4, the other tests about 7. Same city water system. I use the 7 and adjust down with .5 to 1 ml of GH DOWN solution per gallon.
 
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I just had to raise the PH, I mixed in about 1/2 recommended dose of Tiger Bloom into a gallon of water and the PH dropped from a 6.5 down to a 4.0 and yes it took a lot of GH up compared to the down. Go slow, but yes it seemed a lot more needed.
 
I'm using RO water and after I put whatever in the water I test ph. It takes so much longer to water the ladies now that I'm monitoring the ph. Put too much of one in then have to go the other way. Shooting for a range of 6.2 to 6.5 as that seems to be the middle of the road for intake of minerals and such. Seems like I have to use A LOT of up to bring it up. Almost two full dropper things full. The one that comes with the GH ph up down kit. Seems like too much is needed or my meter is off.
 
cyberaktif said:
I'm using RO water and after I put whatever in the water I test ph. It takes so much longer to water the ladies now that I'm monitoring the ph. Put too much of one in then have to go the other way. Shooting for a range of 6.2 to 6.5 as that seems to be the middle of the road for intake of minerals and such. Seems like I have to use A LOT of up to bring it up. Almost two full dropper things full. The one that comes with the GH ph up down kit. Seems like too much is needed or my meter is off.
Click to expand...

If you look at the GH chart showing pH and nute absorbtion, it is important to let it "range" from 5.5 to 6.5. Not all nutrients are absorbed between 6.2 and 6.5.
 
There are many specifics involved that i don't know of but I do know the main two reasons. One is the ph range is super wide and the two substances (ph up $ down) may be at diferent "distances" from your water ph. So one could be several points more than the other from the "middle" making it more "powerful"
the second reason is the ppms in your solution. Pure OR water is very volatile and just a cupple of drops of anything >60-80 ppm makes it way harder to change the ppm. So it takes a whole lot to raise the ph after adding all those acidic salts in the water. One thing I do is to add calmag first. This is not as acidic as the rest of he nutrients. So the ph will stay kinda in range. Good luck
 
ok. i know that the manf says to do the boost first but could try the cal/mag first. also found out that the medium i'm using is a soil-less and ph should be lower than soil. oops.
 
" One thing I do is to add calmag first. "

Yes. The GH instructiions say add CaMg+ or CaMagic first, then Micro, Grow and Bloom in that order. I give a shake to the gallon between. Then pH balance. The nutes seem to take pH down here.
As I over oxigenate with a large air stone, that's OK, as the 02 moves the pH up over the day. I often have to adjust nutrients down during the day by .5 to 1.5 ml of DOWN solution added directly into the
reservoir.
Week 9 and the girls look good.
 
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