RO Water 229 ppm

Northern Boxer

Active Member
I have recently set up a new Indoor grow and plan to fertilize organically but my municipal tap water contains chloramine which can't be removed and will kill all microbial activity. I have access to a local supply of RO water which is identified as Natural Spring Water, Ozone, mineral content 229 ppm. Does this high ppm reading mean that the water still contains beneficial minerals or are the completely removed in the RO process? My organic medium consists of pro-mix, work casting, alfalfa meal, blood meal, glacial rock dust, kelp meal, potassium and rock sulphate, green sand and gypsum. Always used chemical nutrients previously so this is new territory for me. Any feedback would be appreciated. Thanks.
 

gr865

Well-Known Member
I just installed an RO system that after cleansing the city water it adds back calcium and magnesium to the tune of supposedly 30 to 60 ppm. My reading on my EC/TDS meter is dropping but the first few tanks made have been above 100 ppm. Continuing to run and test the system as it seems to be dropping and the tech support folks say it may take a few tanks to get it to the 30 to 60 point..
Even if I get to 30 to 60 ppm I will still add more Cal/Magic to the tune of around 60 ppm as I want my starting ppm to be around 120 ppm prior to adding my base nutes.
My city water is almost 800 ppm, very very bad water, I even use rain water as my final rinse when I shower, if not my skin feels funky. So 30 to 60 ppm is damn good in my book.
 

Kushash

Well-Known Member
I have recently set up a new Indoor grow and plan to fertilize organically but my municipal tap water contains chloramine which can't be removed and will kill all microbial activity. I have access to a local supply of RO water which is identified as Natural Spring Water, Ozone, mineral content 229 ppm. Does this high ppm reading mean that the water still contains beneficial minerals or are the completely removed in the RO process? My organic medium consists of pro-mix, work casting, alfalfa meal, blood meal, glacial rock dust, kelp meal, potassium and rock sulphate, green sand and gypsum. Always used chemical nutrients previously so this is new territory for me. Any feedback would be appreciated. Thanks.
I make my own RO water and my 450 ppm water is usually 20 ppms after being filtered.
If I were to buy RO water from the machines at $.30 per gallon the water is usually around 10 ppms.
If your going to use water that was filtered then had minerals added back in to create 229 ppms you should find out what is in it.
The chloramine in you tap won't kill all microbial activity.
If tap is used on the landscapes in Ontario and it killed all microbial activity then outdoor gardens would suffer and I'm sure they are lush in the summer there.
 

Roger A. Shrubber

Well-Known Member
ro water is reverse osmosis...which means it's pushed through sub micron filters....if you're getting "ro" water that's 229 ppm, their filters are fucking useless....
no one here has any idea what your water contains, but you can get an analysis from your water department. they usually have it online somewhere if you look for it.

as far as chlorine and chloramine....



https://thegrownetwork.com/a-guide-for-using-tap-water-in-your-garden/

http://blog.pennlive.com/gardening/2007/12/chloraminetreated_water_in_the.html

.......;)
 
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Northern Boxer

Active Member
Yes I'm getting is find another RO source or do it myself. A grow buddy locally has been using our municipal water 110 ppm 7.0 ph and still believes he is maintaining good microbial activity through molasses / worm casting based organic tea solutions and top dressing with Gaia Green. Thanks for the feedback all.
 
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