Hard water ferts

R

Rogerlodge

Member
My tapwater is as follows;:

Calcium Hardness= 212 mg/L
Magnesium Hardness= 168 mg/L
The ph of the water averages around 7.6

Im doing an organic grow with supersoil. Any recommendations on how i should treat this water, if at all?
 
Z

ziggywiggy56

Well-Known Member
Rogerlodge said:
My tapwater is as follows;:

Calcium Hardness= 212 mg/L
Magnesium Hardness= 168 mg/L
The ph of the water averages around 7.6

Im doing an organic grow with supersoil. Any recommendations on how i should treat this water, if at all?
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I have even harder water so i'm curious
 
R

Rogerlodge

Member
Capn-Crunch said:
My well water is in that range and all I do is PH it to 6 to 6.5 and have no problems what so ever
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i read that the plant cant absorb calmag in tap water due to some properties of it And as a result it collects around the roots. Do you supplement calmag? Or did i read some bunk info?
 
EvilScotsm@n

EvilScotsm@n

Well-Known Member
Rogerlodge said:
i read that the plant cant absorb calmag in tap water due to some properties of it And as a result it collects around the roots. Do you supplement calmag? Or did i read some bunk info?
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No idea about soil growing but for coco/hydro it's definately bunk. I don't need any extra untill bloom. Even then It's only to treat iron def.
 
Shape Shifter

Shape Shifter

Well-Known Member
Rogerlodge said:
This is all i could find in our water report. I think i could find bicarbonate from the water board...what does that value reveal?
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Bicarbonate is one of the most important numbers. If its too high, it can raise the pH and cause nute lock. You can contact your water department and ask them for mineral concentration analysis. Do you know the TDS of your water?
 
R

Rogerlodge

Member
Shape Shifter said:
https://www.premierwatermn.com/water-quality/city-water/plymouth/

Bad news dude. Your water is 5X harder than national average. You are more likely to run into some problems growing with this water.
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I was afraid you might say that. The water is ~380 ppms. I have a note in to get the mineral analysis. I was using dehumidifier water. But its not running right now so Im scrambling. From reading around it seems like buying distilled or RO(which isnt going to happen). Seems filters wont really help that much? I ran it through a brita and the water came out at 230ppms. But I dont know what was removed....

thanks again for you help
 
Shape Shifter

Shape Shifter

Well-Known Member
If you really got down to 230ppm with a brita, that is water that you can use with less hassle. 150ppm reduction is a lot more filtering than britas are usually capable of. Britas are basic carbon filters that remove chlorine and metals. They don't remove bicarbonate. Maybe you have something new? I'd expect a normal brita to reduce ppm by 5%-15%.
 
R

Rogerlodge

Member
Shape Shifter said:
If you really got down to 230ppm with a brita, that is water that you can use with less hassle. 150ppm reduction is a lot more filtering than britas are usually capable of. Britas are basic carbon filters that remove chlorine and metals. They don't remove bicarbonate. Maybe you have something new? I'd expect a normal brita to reduce ppm by 5%-15%.
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I just checked it again and its the same ppm as my tap. Not sure how i got that last reading...
 
Shape Shifter

Shape Shifter

Well-Known Member
Walmart and some grocery stores sell bulk water for 35 cents a gallon. Fill your own buckets. Not that bad.

You could try using your water, but it is not great water to use. Someone will say they have no problem with 400ppm water. I'm just saying you are more likely to run into pH problems with that water.
 
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