Bleach to nutrient solution.

Hey,

soon I want to start my first DWC grow. I have read that people lr use bleach to keep their nutrient solution sterile and I find that a cool way. My only worry is that if I add the diluted bleach water mixture to the nutrient solution, the bleach might react with the fertilizer in the rez and forms a toxic gas called chlorine gas which is verx harmful to humas. Am I overreacting or are there some dangers and precautions I should look for?

regards
FlorianGrower

Depends on nutes you use.but yes you can create that.small quantity but it will remove bleach from your res

.2ml /gal

Overreacting. The effective dosage of 3-5ppm residual chlorine doesn't do anything in terms of causing bad reactions and/or precipitations.

Here's the dilution calculator:
Chlorine dilution calculator

So, as far as you guys tell me, there should be no problem to make a bleach batch with like 500ppm and add 1 liter of it my 100 liter nutrient solution to achieve 5ppm. my base chloride ppm is almost 0 btw. No worries of gas right? Is there a right order to add the nutrients/bleach? I am using GHE (T. A.) TriPart for hardwater, GHE CalMg, GHE Silicate and GHE PH-.

Sodium hypochlorite and chloride aren’t going to interact to form chlorine or especially chlorine gas.

really, i thought they do with ammonia?

floriangrower said:

really, i thought they do with ammonia?

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Are you using bleach (sodium hypochlorite) or ammonia? 2 very different things.

hotrodharley said:

Are you using bleach (sodium hypochlorite) or ammonia? 2 very different things.

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I am using normal bleach with 2.8g sodium hypochlorite at 100gramm. Ammonia is in the GHE FloraGrow (Ammoniacal Nitrogen).

floriangrower said:

I am using normal bleach with 2.8g sodium hypochlorite at 100gramm. Ammonia is in the GHE FloraGrow (Ammoniacal Nitrogen).

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There’s so little ammonia in that product that any reaction probably is immeasurable. Don’t sweat it.

hotrodharley said:

There’s so little ammonia in that product that any reaction probably is immeasurable. Don’t sweat it.

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Yea I thought about that too, it's about 2%. I have no chemistry knowledge tho, I am an engineer so I am very careful about things I dont know. Thanks for the reply!

One time I added pool shock to a res with h2o2 in it. The reaction was this gray smoke like color rolling building in the res and I thought "oh fuck, it's about to explode" and then I ran away and googled until I was calm again.

Tolerance Break said:

One time I added pool shock to a res with h2o2 in it. The reaction was this gray smoke like color rolling building in the res and I thought "oh fuck, it's about to explode" and then I ran away and googled until I was calm again.

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what was it haha?

floriangrower said:

So, as far as you guys tell me, there should be no problem to make a bleach batch with like 500ppm and add 1 liter of it my 100 liter nutrient solution to achieve 5ppm. my base chloride ppm is almost 0 btw. No worries of gas right? Is there a right order to add the nutrients/bleach? I am using GHE (T. A.) TriPart for hardwater, GHE CalMg, GHE Silicate and GHE PH-.

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i'd be careful running at 5ppm. that's the upper threshold for safe level

rkymtnman said:

i'd be careful running at 5ppm. that's the upper threshold for safe level

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because of the plants or because of my health?

yea i'd start with 5ppm like 2 days before i plant them into the netpots and then add 3 ppm weekly to keep the bacteria away

btw is there a list of the optimal amounts of nutrients cannabis needs with R/O water in hydro?

floriangrower said:

because of the plants or because of my health?

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either

rkymtnman said:

either

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ok i will make sure to keep it under 5 ppm

floriangrower said:

what was it haha?

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The h2o2 and cal hypo mixed and it basically just broke down into hypochloric acid and oxygen.

I am not a chemist and this was about 2 weeks ago, so don't quote me on that.