Question about rainwater

nidhogg1

Active Member
Now that summer is closing in im considering to harvest rain water for my next grow simply because my tapwater is waaay to alkaline.

Anyways, does anyone know the avarage npk ratio in rainwater? Im guessing that it differs from area to area, but it would be good to know so i can adjust it.
 

mygirls

Medical Marijuana (MOD)
now that summer is closing in im considering to harvest rain water for my next grow simply because my tapwater is waaay to alkaline.

Anyways, does anyone know the avarage npk ratio in rainwater? Im guessing that it differs from area to area, but it would be good to know so i can adjust it.
0 cuz there is nothing in the water. Some times youcan get an acidy rain. But yes rain water would be better cuz most likely you will not have to ph the water.
 

nidhogg1

Active Member
demonic1 said:
Its always around 7 here.
Do you mean the PH? Its always 8,5 here give or take, lucky you who gets neutral tapwater!

mygirls said:
0 cuz there is nothing in the water. Some times youcan get an acidy rain. But yes rain water would be better cuz most likely you will not have to ph the water.
Ehh not quite, i know for a fact that rainwater contains npk unless im completely out of my mind

Edit: I stand corrected :P
 

bigwity

Well-Known Member
Do you mean the PH? Its always 8,5 here give or take, lucky you who gets neutral tapwater!



Ehh not quite, i know for a fact that rainwater contains npk unless im completely out of my mind

Edit: I stand corrected :P
if the rain water has been sitting in a waterbut and has a green tinge to it then it is high in n because of the algy that breeds. i was wondering if you need to microwave it incase of disease. or can i just go ahead and use it. i could be full of shit though cos i only know what i read and who whos if what im reading is true.
 

mygirls

Medical Marijuana (MOD)
if the rain water has been sitting in a waterbut and has a green tinge to it then it is high in n because of the algy that breeds. i was wondering if you need to microwave it incase of disease. or can i just go ahead and use it. i could be full of shit though cos i only know what i read and who whos if what im reading is true.
no you don't pour it into another bucket threw a shirt first b4 you use it.:mrgreen:
 

bigwity

Well-Known Member
no you don't pour it into another bucket threw a shirt first b4 you use it.:mrgreen:
is that just to filter all the nastys out cos if i was a plant id bend over backward for a taste of this water it looks real lush ive added some water oxegenating plants to my water butt to just to see if i can add a bit more oxegen do you think im mad for trying this. or am i a undiscovered genius. your call.;-)
 

mygirls

Medical Marijuana (MOD)
is that just to filter all the nastys out cos if i was a plant id bend over backward for a taste of this water it looks real lush ive added some water oxegenating plants to my water butt to just to see if i can add a bit more oxegen do you think im mad for trying this. or am i a undiscovered genius. your call.;-)
yep :mrgreen:
 

mygirls

Medical Marijuana (MOD)
i mix up my nutes, MG24-8-16, super thrive,and guanoin a 32 gallon trash can and it normaly sets for a couple of weeks be4 i use it all. talk about stink with that guano by then, and they LOVE IT
 
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