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CrushNazT said:
i use the powdered stuff at work. you dilute it out into a jug of water and then use that as your pH up/down.

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phychotron said:
I used to use Gen Hydro pH down in both liquid and powder form. They're pretty weak so I switched to Advanced Nutrient's pH down, which is really strong. Never had a need for pH up.

The stuff dissolves easily but liquid is easier to use (maybe make a liquid bottle with the dry powder?) for measuring out reasons. I use a mL dropper for small amounts and have my exact formula down so I stopped measuring pH all together (that and my meter broke.) I use 1mL AN pH- per gallon of nutrients. I think I remember using between 4 and 8 mL of GH per gallon of nutrients. The AN stuff is so strong that it can be difficult adjusting the pH on a gallon or two. I don't care to get the pH exact, just low enough to be within that 5.8 range. 

Scooping the powder is a pain in the ass cause you always get some on you and have more spillage. I felt like I should have worn a rubber glove every time I used the stuff. It seemed like an eye hazard as well.

Here's a comparison of Gen Hydro and Advanced Nutrient's pH down (both liquid.) I wish I would have taken the test further until the Gen Hydro bottomed out, but basically you can see how much faster the AN drops the pH of plain water.



I'm not sure how the AN pH+ works, but if its like the pH- then well worth the investment. Its around ~20 for each and the AN stuff is super concentrated.

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Hell yea thanks for the info,

I dont know y but my tap water after sitting in the res. all night reads 7.0

Now when I put anything in the water in drops it way down. depending how much I feed,It has went as low as 3.0.

When i give plan water is the only time I use ph down. GH, That shit is strong. I use like 3 drops for 3 gallon and really have to be careful not to fuck up.

So I go threw this ph up like crazy. Just trying to find cheaper but just as good.

Thanks for the post

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Magash said:
Advanced nutrients liquid adjusters are very concentrate just so you know. A gallon bottle of ph up has lasted me since 2010. The powders are killer also. They are also very strong I used the ones from Earth Juice that are suppose to be organic. I've had them since before I did my organic vs chem test.

I'm lazy the earth juice powers dissolve so well I just go straight to the rez with em. I'd have to agree it's better to premix.

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phychotron said:
pH is not as straigh forward as you might think. There is what's called a 'buffer' or resistance to changes in pH. So if you had RO water it doesnt take much to change the pH drastically, but add some Ca/Mg and it will take significantly more to change the pH by the same amount. If your prone to huge shifts like that you might consider adding some Ca/Mg to help stabilize the pH.

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Funny you say that is because I use cal/mag in every other water. and you know depending on how much water im using i can just use that to bring my ph down.


My water is funny. But I can work with it.






Fuck  maybe thats how im fucking some of my plants up. Im in a hurry and add to much up or down.
Then try and fix it . then feed that shit to them

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phychotron said:
A lot of places have high pH to prevent the pipes from rusting. Which is why some people are dependent/adamant on using RO water. It can be hard fighting the buffer they're using to keep the pH up.

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phychotron said:
RO filters don't remove dissolved gasses, which can mess with pH.

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