Disastrous 4 pH runoff

[SamRD]

Runoff pH. I flushed with a lot of phed water, didn't change anything, exactly the same. It's hard for me to get dolomite lime, anything else I can use? It's looking bad, my plant can't use any nutes.

 

[Powertech]

Potassium hydroxide, a little goes a very long way...also called potash which i am sure you have heard of in many nutes

 

[Wattzzup]

View attachment 4794566

Runoff pH. I flushed with a lot of phed water, didn't change anything, exactly the same. It's hard for me to get dolomite lime, anything else I can use? It's looking bad, my plant can't use any nutes.

Have you tried using plain tap? What are growing in? Give us some details

 

[cannabineer]

Potassium hydroxide, a little goes a very long way...also called potash which i am sure you have heard of in many nutes

Potash is potassium carbonate.

 

[Powertech]

Potash is potassium carbonate.

its both
Potash is the common name for any of several compounds containing potassium, such as potassium carbonate (K 2CO 3), potassium oxide (K 2O) and potassium chloride (KCl). These compounds are used primarily in the manufacturing of fertilizer. The term potash derives from the Dutch word potaschen, which means pot-ashes.

 

[cannabineer]

its both

No. The hydroxide is caustic potash.

 

[cannabineer]

its both
Potash is the common name for any of several compounds containing potassium, such as potassium carbonate (K 2CO 3), potassium oxide (K 2O) and potassium chloride (KCl). These compounds are used primarily in the manufacturing of fertilizer. The term potash derives from the Dutch word potaschen, which means pot-ashes.

I was a lab chemist. We never used potash for anything but the carbonate. Most of the above (the oxide? the chloride!?) are never termed potash. You did not draw that text from the chemical literature.

Muriate of potash is a century-obsolete term for potassium chloride.

 

[athlete]

I was a lab chemist. We never used potash for anything but the carbonate. Most of the above (the oxide? the chloride!?) are never termed potash. You did not draw that text from the chemical literature.

Muriate of potash is a century-obsolete term for potassium chloride.

LOL

That was very kind.

 

[cannabineer]

LOL

That was very kind.

I need to be careful with terms of art. Non-chemist professions that use these materials (such as tanners, textile dyers, soap makers etc.) may have different traditions in the use of the word. I don’t know that this is so, but I don’t know that it isn’t.

 

[MR. GiggleShitz]

Is your medium that acidic due to salt build up from residual nutrients ?

 

[SamRD]

Have you tried using plain tap? What are growing in? Give us some details

Yes I have, also did nothing, doesn't budge from the red color. I'm growing in trash miraclegrow moisture control. Never again

 

[athlete]

The medium you're growing in is vital information here.

I don't think flushing soil affects the pH.
If you're in soilless, you probably didn't flush enough. That should change eventually with flushing... IME

 

[SamRD]

Is your medium that acidic due to salt build up from residual nutrients ?

The soil is just trash miraclegrow, always gives me problems. I know some people like it but it's too hard to control for a novice like me.

 

[SamRD]

The medium you're growing in is vital information here.

I don't think flushing soil affects the pH.
If you're in soilless, you probably didn't flush enough. That should change eventually with flushing... IME

It's miraclegrow moisture control.

 

[athlete]

Case closed.

 

[SamRD]

Guys who recommended potassium, are any of these products ok? It's the fastest delivery items I can get.

1 Pound - Potassium Sulfate - Sulfate of Potash : Amazon.ca: Health & Personal Care

1 Pound - Potassium Sulfate - Sulfate of Potash : Amazon.ca: Health & Personal Care

www.amazon.ca

Potassium Chloride - KCl - 1 Pound : Amazon.ca: Industrial & Scientific

Potassium Chloride - KCl - 1 Pound : Amazon.ca: Industrial & Scientific

www.amazon.ca

 

[SamRD]

Case closed.

Some people claim to be growing with it for 10 years. I don't know what to say.

 

[SnoopyDoo]

If you're ordering from Amazon, just get some fine dolomite lime. Espoma lime will bump that PH back up in a hurry. I just top dress the pot with some. No need to go overboard. I used ~1-2 table spoons per 3 gal pot when I encountered a similar situation. Worked almost immediately.

Espoma Garden Lime Organic Pellets Plant Food 6.75 lb - Ace Hardware

Espoma organic garden lime is the finest grade of pelletized, dolomitic limestone available. Raises soil pH so that plants get the most from nutrients present. Spreads easily, reacts quickly and does not pose the hazards associated with hydrated lime.Find the GARDEN LIME 6.75 LBS at Ace.

www.acehardware.com

 

[Bukvičák]

This is actually saying NOTHING about your mediums pH. Do not pH in soil, for sure not pH down, if your nuts fucking pH to low and you need to use pH up (hopefully you take measurement of pH of your nut mix after one day sit) just use lower dose for being in range. Dicking around with pH up and down in soil can cause only troubles. Also how was the EC of that runoff? More salts means lower pH. Do you have some lockout issues?

 

[SamRD]

If you're ordering from Amazon, just get some fine dolomite lime. Espoma lime will bump that PH back up in a hurry. I just top dress the pot with some. No need to go overboard. I used ~1-2 table spoons per 3 gal pot when I encountered a similar situation. Worked almost immediately.

Espoma Garden Lime Organic Pellets Plant Food 6.75 lb - Ace Hardware

Espoma organic garden lime is the finest grade of pelletized, dolomitic limestone available. Raises soil pH so that plants get the most from nutrients present. Spreads easily, reacts quickly and does not pose the hazards associated with hydrated lime.Find the GARDEN LIME 6.75 LBS at Ace.

www.acehardware.com

I'm in Canada, amazon doesn't have the lime unfortunately.