Rising pH in res used for handwatering?

dubekoms

dubekoms

Well-Known Member
Well my plants definitely aren't affected by it so I guess no need to worry though I would like to figure out what the deal is. Hopefully GH can clear it up when they message me back.
 
dubekoms

dubekoms

Well-Known Member
Here is what GH said about the undissolved solids..

"Good morning *****, what you are seeing leftover are hollow crystals that used to hold fertilizer salt bonds. There is no fertilizer value left in this material, so it is not of concern unless it is bothering you. I think you will find this disappears if you use hot tap water to dissolve the material, especially in a bigger container. There is a saturation point with powders that is quickly reached if trying to mix enough powder in a 1 gallon blender for say a 50 gallon reservoir. If you used a bigger vessel for mixing, you would not see as much material in the mixing container."

I have been trying to mix it in only about 2 cups of liquid but with only about 20 grams. I guess dumping it straight in the final container and running a pump might be best but either way it's not an issue.
@Renfro @rkymtnman
 
Cwmoore577

Cwmoore577

Well-Known Member
Also an off topic question..

Does this look like the start of a phosphorus def?
8AFE2B60-7EDD-4427-B500-0951041358CE.jpeg
I noticed it 4 days ago and since given it a half/half mix of BioGrow(4-3-3) and BioBloom(2-4-4) at and EC of 0.7 and 450-550ppm. And today I’ve just given the bloom nutrients at the same strength. Calmag is added at 4-5ml/gal every time. I water 2-3 times daily as it’s in a coco tupur mix.

I’ve had a likely cal def in this grow for some weeks and I think I’ve gotten it to slow.

It looks like it’s beginning to flower just wanted to make sure that I’m switching to bloom nutrients at the right time.


Here’s a pic of the entire plant
7CD3A237-DA96-4A7C-B929-BBCAFD687DAD.jpeg
 
A

Aqua Man

Well-Known Member
Cwmoore577 said:
Also an off topic question..

Does this look like the start of a phosphorus def?
View attachment 4432575
I noticed it 4 days ago and since given it a half/half mix of BioGrow(4-3-3) and BioBloom(2-4-4) at and EC of 0.7 and 450-550ppm. And today I’ve just given the bloom nutrients at the same strength. Calmag is added at 4-5ml/gal every time. I water 2-3 times daily as it’s in a coco tupur mix.

I’ve had a likely cal def in this grow for some weeks and I think I’ve gotten it to slow.

It looks like it’s beginning to flower just wanted to make sure that I’m switching to bloom nutrients at the right time.


Here’s a pic of the entire plant
View attachment 4432576
Click to expand...
Looks like very low humidity and heat stress while being closer to the light?
 
dubekoms

dubekoms

Well-Known Member
Cwmoore577 said:
Also an off topic question..

Does this look like the start of a phosphorus def?
View attachment 4432575
I noticed it 4 days ago and since given it a half/half mix of BioGrow(4-3-3) and BioBloom(2-4-4) at and EC of 0.7 and 450-550ppm. And today I’ve just given the bloom nutrients at the same strength. Calmag is added at 4-5ml/gal every time. I water 2-3 times daily as it’s in a coco tupur mix.

I’ve had a likely cal def in this grow for some weeks and I think I’ve gotten it to slow.

It looks like it’s beginning to flower just wanted to make sure that I’m switching to bloom nutrients at the right time.


Here’s a pic of the entire plant
View attachment 4432576
Click to expand...
What kind of lighting are you running? What are the temps and rh both lights on and off?
 
5BY5LEC

5BY5LEC

Well-Known Member
Aqua Man said:
Also tap water ph IME rises after being left out. The reason being it's in a closed system and under pressure so small amount of organics that react with the chlorine/chloramines give off CO2 because of the pressure the CO2 is immediately absorbed into the water and forms carbonic acid. Depending on the amount of carbonate and bicarbonate this will have a varying affect but will generally lower ph. If the carbonate and bicarbonate is high it may remain stable. Generally water supplies use calcium carbonate to keep ph up over 6.8? I think. As acidic water can erode coating and heavy metals in pipes... Remember flint?

Long story short it's best to bubble your water before phing this helps the water reach equilibrium with the air and helps ensure a reliable ph reading free from influence of extra carbonic acid in tap water
Click to expand...
Ah, the simplest answer is usually the best.
Why do you think tap water tastes like shit after being left out? The PH rises.
 
Cwmoore577

Cwmoore577

Well-Known Member
dubekoms said:
What kind of lighting are you running? What are the temps and rh both lights on and off?
Click to expand...
Aqua Man said:
Looks like very low humidity and heat stress while being closer to the light?
Click to expand...
I have a 100w output blurple and put a SunSystem HPS 150 in there about 2 weeks ago which does output some heat but with the exhaust fan in there temps didn’t rise much at all. Maybe 3-4 degrees. Temps are always around 75F and RH usually 55-60%.
 
A

Aqua Man

Well-Known Member
Cwmoore577 said:
I have a 100w output blurple and put a SunSystem HPS 150 in there about 2 weeks ago which does output some heat but with the exhaust fan in there temps didn’t rise much at all. Maybe 3-4 degrees. Temps are always around 75F and RH usually 55-60%.
Click to expand...
I mean the leaf temps sorry i should have been more specific. Its not really the air temps that create heat stress its the leaf temps. Heat and light stress will cause leaves to kinda taco up. The entire plant pic looks great. I'm assuming those leaves are near the top and closest to the light?
 
You must log in or register to reply here.
Top