Soil runoff 5.5 due to daily watering with ph down?

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Grow311

Active Member
Hey guys, my plants are turning yellow in 3rd week of flower. Trying to determine causes but I think its nute lockout since I've been feeding regularly (not too much at all) and all other conditions seem fine.

Soil water runoff (fox far ocean forest which should be pre phed to 6.3) comes out at 5.5 currently. My water that goes in daily is always phed down to around 6.3 or even up to 6.5 (half a tsp) since my tab water is around 6.8 or higher. Not sure why the runoff ph is so low. Could it be that the little Ph down I'm using for every watering accumulates in the soil over time??

I'm going to just feed straight water without ph down for a while and thinking about a 1 time watering with a tsp of baking soda in the next few days if the runoff ph is still high in a few days. Im in 3rd week of flower.
 

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Beehive

Beehive

Well-Known Member
PHing tap water takes a huge amount of PH down.

My tap is 250ppm. It takes 1.25ml of ph down to stabilize. And it destroys soil's ph. Compared to RO water. It takes drops to PH.
 
Beehive

Beehive

Well-Known Member
Grow311 said:
This is only my 3rd grow and I've so far shied away from looking into RO more. Mainly bc it seems costly and my place is not that big...
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It is expensive but if you want to experience the real deal. It's a necessary tool.

The water should read zero EC or PPM.
 
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Grow311

Active Member
Yea, well like i said above, my tap water usually sits at 6.8 or 6.9 and u supposed to water with 6.3 so... yea... :(
 
Corso312

Corso312

Well-Known Member
Grow311 said:
Yea, well like i said above, my tap water usually sits at 6.8 or 6.9 and u supposed to water with 6.3 so... yea... :(
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Wrong.. Your tap water is perfect. The soil has buffers in it to keep the PH in check.. You are fucking it all up with your PH up and Down.. Just use your tap water with nutes then plain tap water then tap water with nutes then plain tap water..repeated every time you feed or water until harvest.
 
ilovetoskiatalta

ilovetoskiatalta

Well-Known Member
Grow311 said:
Hey guys, my plants are turning yellow in 3rd week of flower. Trying to determine causes but I think its nute lockout since I've been feeding regularly (not too much at all) and all other conditions seem fine.

Soil water runoff (fox far ocean forest which should be pre phed to 6.3) comes out at 5.5 currently. My water that goes in daily is always phed down to around 6.3 or even up to 6.5 (half a tsp) since my tab water is around 6.8 or higher. Not sure why the runoff ph is so low. Could it be that the little Ph down I'm using for every watering accumulates in the soil over time??

I'm going to just feed straight water without ph down for a while and thinking about a 1 time watering with a tsp of baking soda in the next few days if the runoff ph is still high in a few days. Im in 3rd week of flower.
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What strain? Just asking for a friend? Not being difficult but looks like a cal/mag deficiency is possible. Soil is a very forgiving medium, if it is dialed in. It will take longer than other mediums unless optimum growing environment. I am only speculating so there is a nickel worth of free advice. I am curios about the strain @Grow311
 
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PadawanWarrior

PadawanWarrior

Well-Known Member
Grow311 said:
Hey guys, my plants are turning yellow in 3rd week of flower. Trying to determine causes but I think its nute lockout since I've been feeding regularly (not too much at all) and all other conditions seem fine.

Soil water runoff (fox far ocean forest which should be pre phed to 6.3) comes out at 5.5 currently. My water that goes in daily is always phed down to around 6.3 or even up to 6.5 (half a tsp) since my tab water is around 6.8 or higher. Not sure why the runoff ph is so low. Could it be that the little Ph down I'm using for every watering accumulates in the soil over time??

I'm going to just feed straight water without ph down for a while and thinking about a 1 time watering with a tsp of baking soda in the next few days if the runoff ph is still high in a few days. Im in 3rd week of flower.
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Are you using nutes? What kind?
 
G

Grow311

Active Member
The strains in the above pics: first pic Northern Lights, second pic Chemdawg. And I actually gave them a cal mag boost this morning that I made with egg shells and epsom salt. I'll see in the next few days if that helps.

Nutes: using the fox farm trio, but less than half strength. Still, I kind of feel like the prob kind of started after I started feeding nutes bc the first few weeks after transplant I didnt feed anything but phed water. I want to try earth juice maybe next time but if I want to make tea it looks like I need RO water too.
 
G

Grow311

Active Member
ÒÒlegilizeitÒÒ said:
Here is the RO system I got. Works great and is a great price

Amazon.com: Koolermax AR-122 6-stage RO+DI Aquarium Reef Reverse Osmosis Water System 150 GPD New Complete: Home Improvement

Amazon.com: Koolermax AR-122 6-stage RO+DI Aquarium Reef Reverse Osmosis Water System 150 GPD New Complete: Home Improvement
www.amazon.com

You can also just pick up distilled water from the grocery store (5g or 1g)
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I just ordered mine. Did you buy a separate container for the clean water? Have a link?
 
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