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Lowering PH

  • Thread starter Thread starter Newbie2019
  • Start date Start date Aug 12, 2019
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Lowering PH

Newbie2019 Aug 12, 2019 149 Replies 14,532 Views
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oldskol4evr

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#21
PipeCarver said:
I rely on the grow shop guys to steer me in the right direction with that stuff. I probably pay too much for the stuff but rely on the experts....right?....I have some brand named PH Up but my down is some stuff they mixed up themselves, no label wtfk's what they sold me but it works a drop at a time. They probably told me at the time what it was but I'm 67 add a few pipe fulls , a few months and well my memory is not what she used to be.
Click to expand...
im same boat as your in hahahah
 
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Aqua Man

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#22
MIMedGrower said:
DAMN YOU AQUA MAN!!!
Click to expand...
Now are you wondering how much of the general hardness in your well water is carbonate hardness? For those wondering If you can hold a steady ph without adding a shit ton of acid there is no need to know.

For you organic guys the best to use is citric acid as it's the easiest on microbial life but peat moss is better. In aquatics this is often used in pantyhose or carbonic acid by injecting co2.

For hydro sulfuric or phosphoric last the longest and are the best option. Although peat moss could be used generally try to avoid organic material.
 
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quirk

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#23
My city water has a ph of 8.1. I use 1/4 tsp./gal to achieve and stabilize at 6.2. Citric acid crystals.
 

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Newbie2019

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#24
Ok so I bought ph down made of Phosphoric acid. Is it safe to use right after using ph down or do I need to let it sit for some time before watering plants?
 
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Aqua Man

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#25
Newbie2019 said:
Ok so I bought ph down made of Phosphoric acid. Is it safe to use right after using ph down or do I need to let it sit for some time before watering plants?
Click to expand...
Adjust ph and good to go right away.
 
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Beachwalker

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#26
Newbie2019 said:
Ok so I bought ph down made of Phosphoric acid. Is it safe to use right after using ph down or do I need to let it sit for some time before watering plants?
Click to expand...
Yes, safe
Aqua Man said:
Adjust ph and good to go right away.
Click to expand...
Question: Is citric acid and lemon juice basically the same thing?
 
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Aqua Man

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#27
Beachwalker said:
Yes, safe

Question: Is citric acid and lemon juice basically the same thing?
Click to expand...
Yes lemon juice is citric acid but also contains other stuff. In addition the concentration would likely be different.
 
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Beachwalker

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#28
Aqua Man said:
Yes lemon juice is citric acid but also contains other stuff. In addition the concentration would likely be different.
Click to expand...
Thanks for the input. So I'm understanding that citric acid would be a better choice than lemon juice?

What do you think about using vinegar in a soil grow?
 
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quirk

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#29
Beachwalker said:
Thanks for the input. So I'm understanding that citric acid would be a better choice than lemon juice?

What do you think about using vinegar in a soil grow?
Click to expand...
I use vinegar ( 20% apple cider) as an organic weed killer, instead of f***ing Roundup, so I wouldn't use in my cannabis soil grow.
 
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Aqua Man

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#30
Beachwalker said:
Thanks for the input. So I'm understanding that citric acid would be a better choice than lemon juice?

What do you think about using vinegar in a soil grow?
Click to expand...
I would say so I think lemon juice is like 6-7% citric acid while the citric acid sold is usually around 50%.

Just looked up vinegar I never looked into it but have tried it in the past with poor results. It's 5-20% acetic acid. Made with ethanol and sugar and fermented with bacteria.

I would stick to citric in soil as my first choice but I would also say vinager and lemon juice will work. In order of effectiveness in ability to lower ph.

Citric acid concentrate
Vinegar
Lemon juice
 
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Aqua Man

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#31
quirk said:
I use vinegar ( 20% apple cider) as an organic weed killer, instead of f***ing Roundup, so I wouldn't use in my cannabis soil grow.
Click to expand...
Any acid will kill weeds. It kills them by making the leaf surface ph so low it kills the plant. I use dish soap 20% vinegar and table salt.

By the time you reach your ph with whatever acid is so diluted it's harmless
 
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Beachwalker

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#32
Aqua Man said:
I would say so I think lemon juice is like 6-7% citric acid while the citric acid sold is usually around 50%.

Just looked up vinegar I never looked into it but have tried it in the past with poor results. It's 5-20% acetic acid. Made with ethanol and sugar and fermented with bacteria.

I would stick to citric in soil as my first choice but I would also say vinager and lemon juice will work. In order of effectiveness in ability to lower ph.

Citric acid concentrate
Vinegar
Lemon juice
Click to expand...
Thanks! So a product like this would be fine and basically make a mother solution and just use it like GH pH down, right?

 
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Aqua Man

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#33
Beachwalker said:
Thanks! So a product like this would be fine and basically make a mother solution and just use it like GH pH down, right?

View attachment 887896
Click to expand...
I should add all my experience with these have been in water. So when I say I had poor results with vinegar I mean it's ability to buffer pH for an adequate period of time in water. I don't think this would be an issue in soil
 
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Aqua Man

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#34
Beachwalker said:
Thanks! So a product like this would be fine and basically make a mother solution and just use it like GH pH down, right?

View attachment 887896
Click to expand...
Yup only GH ph down is phosphoric acid I believe and I would mix with distilled water. I believe chlorine and chloramines may react with it but don't quote me on that.
 
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Madbud

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#35
...or just work some composted cow manure into your soil
 
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Aqua Man

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#36
Madbud said:
...or just work some composted cow manure into your soil
Click to expand...
Yep or peat moss. Soils will bring to where you build them. Most often if you have a low carbonate hardness water like RO or even most tap you don't need to ph at all the soil will do it.

Even a moderate amount of carbonate can easily be adjusted by soil. Hi carbonate water like well water with higher amounts of limestone are an exception and should definitely be ph'ed first.
 
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Beachwalker

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#37
Aqua Man said:
Yup only GH ph down is phosphoric acid I believe and I would mix with distilled water. I believe chlorine and chloramines may react with it but don't quote me on that.
Click to expand...
..have always used GH, think I'll give the citric a try, thanks again!
 
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oldskol4evr

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#38
Aqua Man said:
Yep or peat moss. Soils will bring to where you build them. Most often if you have a low carbonate hardness water like RO or even most tap you don't need to ph at all the soil will do it.

Even a moderate amount of carbonate can easily be adjusted by soil. Hi carbonate water like well water with higher amounts of limestone are an exception and should definitely be ph'ed first.
Click to expand...
no doubt bro,my well is 500 ft deep i change the filter every month hahahah,mainly my biggest issue in the garden ,reason i amend were it adjust itself or die hahahah,sorry didnt answer post,old lady says i wont that damn engine off my coffe table and out of living room ,been fiishing it today,you already know when them hens get to squacking ass is gonna move hahahahh
 
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Aqua Man

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#39
oldskol4evr said:
no doubt bro,my well is 500 ft deep i change the filter every month hahahah,mainly my biggest issue in the garden ,reason i amend were it adjust itself or die hahahah,sorry didnt answer post,old lady says i wont that damn engine off my coffe table and out of living room ,been fiishing it today,you already know when them hens get to squacking ass is gonna move hahahahh
Click to expand...
No worries bro. Lol you better get it done before she airsoft's your ass again.
 
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Fangthane

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#40
Aqua Man said:
Yup only GH ph down is phosphoric acid
Click to expand...
For large pH adjustments, I use Bloom City pH Down, which is also phosphoric acid. When I'm close and just want to make small moves, I use 100% lemon juice for fine tuning. I'm a soil guy, though.

 
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Replies 149
Views 14,532
Started Aug 12, 2019
Latest post Sep 1, 2019
Starter Newbie2019
Forum General Indoor Growing

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