“Bleach” in hydro systems

zzyx said:
While I’m sure x appreciates your sycophantic emotions, he appears to have joined RIU approximately 4 1/2 years ago. Hardly equates to the time when I was “cuddling a cabbage patch.” Does he have grow logs I’m unaware of?
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I just made a dope rhyme even doper. If you want to communicate with me, put it wax.
 
zzyx said:
While I’m sure x appreciates your sycophantic emotions, he appears to have joined RIU approximately 4 1/2 years ago. Hardly equates to the time when I was “cuddling a cabbage patch.” Does he have grow logs I’m unaware of?
Click to expand...
Use the same investigative technique to find the answers to your stupid questions.
 
zzyx said:
I see numerous posts recommending the use of “bleach “ as a preventative/cure for pythium. This thread is for them. A couple questions:
Assuming you mean Sodium hypochlorite, when you say “bleach”;
What are your application ratios (“bleach”to water)?
What is your schedule for dosing your reservoir?
Do you have a method of measuring the chlorine ppms?
Same questions for users of “pool shock”.
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Ok I'll bite.

I used shock for years in an ebb and flow system. It worked great to keep things clean in a simple manner. I was skeptical at first even to use tap water because of chlorine and spent a few years bubbling my water to get it out. Then I read about using it to keep a sterile res and decided to try it out. That was one of the best choices I ever made. I stopped bubbling tons of water every week and never had another rez or root issue again.

I used basic HTH pool shock. The one I had came in a pink tub, and cost me $9 at the time. I used that same bottle for 6ish years and still had about 1/3 of it left when I threw it out when I moved. I would mix 1/2 tsp into a gallon of water to create a concentrate solution. then add that solution at roughly 1 oz per gallon in my reservoir. I did this about every 3-4 days because the chlorine seems to evaporate out pretty uickly. I have not actually done chlorine content tests, but it can be done. I just followed instructions laid out by another grower and had great results, hopefully this helps someone else out the same way.
 
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Thundercat said:
Ok I'll bite.

I used shock for years in an ebb and flow system. It worked great to keep things clean in a simple manner. I was skeptical at first even to use tap water because of chlorine and spent a few years bubbling my water to get it out. Then I read about using it to keep a sterile res and decided to try it out. That was one of the best choices I ever made. I stopped bubbling tons of water every week and never had another rez or root issue again.

I used basic HTH pool shock. The one I had came in a pink tub, and cost me $9 at the time. I used that same bottle for 6ish years and still had about 1/3 of it left when I threw it out when I moved. I would mix 1/2 tsp into a gallon of water to create a concentrate solution. then add that solution at roughly 1 oz per gallon in my reservoir. I did this about every 3-4 days because the chlorine seems to evaporate out pretty uickly. I have not actually done chlorine content tests, but it can be done. I just followed instructions laid out by another grower and had great results .
Click to expand...
Finally.
Pop Quiz Score:
A
:clap:
 
Thundercat said:
Ok I'll bite.

I used shock for years in an ebb and flow system. It worked great to keep things clean in a simple manner. I was skeptical at first even to use tap water because of chlorine and spent a few years bubbling my water to get it out. Then I read about using it to keep a sterile res and decided to try it out. That was one of the best choices I ever made. I stopped bubbling tons of water every week and never had another rez or root issue again.

I used basic HTH pool shock. The one I had came in a pink tub, and cost me $9 at the time. I used that same bottle for 6ish years and still had about 1/3 of it left when I threw it out when I moved. I would mix 1/2 tsp into a gallon of water to create a concentrate solution. then add that solution at roughly 1 oz per gallon in my reservoir. I did this about every 3-4 days because the chlorine seems to evaporate out pretty uickly. I have not actually done chlorine content tests, but it can be done. I just followed instructions laid out by another grower and had great results, hopefully this helps someone else out the same way.
Click to expand...
Show off. Lol
 
The bottom line is that when used properly in a sterile hydroponic system sodium hypochlorite is effective at preventing pathogens such as pythium. It's used by many for that purpose. As with anything, lack of knowledge or ignorance can have negative effects. Used properly sodium hypochlorite is an effective solution to problems that can arise when growing hydroponically.

Both chlorine and sodium are used by the plant. But both can be detrimental when concentrations are too high. Chlorine dissipates over time but sodium can build up. When running a sterile hydroponic system the nutrient solution can be topped off for 10-14 days before being drained and replenished with a fresh nutrient solution. In that time frame there would not be enough sodium from the use of sodium chlorite to have accumulated to the point of nearing potential toxicity levels. There is likely a higher content in most soils which doesn't cause any adverse effects on plant growth.

In conclusion. Sodium hypochlorite is one of many options for controlling pathogens in a sterile hydroponic system.


Chloride as a Beneficial Macronutrient in Higher Plants: New Roles and Regulation

academic.oup.com

Sodium in plants: perception, signalling, and regulation of sodium fluxes

Summary. Na+ can be beneficial and toxic to plants. In both cases plants require mechanism(s) to monitor and regulate Na+ fluxes and concentrations. This p
academic.oup.com academic.oup.com

The Effects of Sodium Chloride on Higher Plants.
 
“Chlorine dissipates over time but sodium can build up. When running a sterile hydroponic system the nutrient solution can be topped off for 10-14 days before being drained and replenished with a fresh nutrient solution.”
That’s one of the important and often overlooked points. Sodium build up, and I damn sure don’t want to do rez changes every 2 weeks. Good article.
 
zzyx said:
“Chlorine dissipates over time but sodium can build up. When running a sterile hydroponic system the nutrient solution can be topped off for 10-14 days before being drained and replenished with a fresh nutrient solution.”
That’s one of the important and often overlooked points. Sodium build up, and I damn sure don’t want to do rez changes every 2 weeks. Good article.
Click to expand...
:wall:
 
zzyx said:
“Chlorine dissipates over time but sodium can build up. When running a sterile hydroponic system the nutrient solution can be topped off for 10-14 days before being drained and replenished with a fresh nutrient solution.”
That’s one of the important and often overlooked points. Sodium build up, and I damn sure don’t want to do rez changes every 2 weeks. Good article.
Click to expand...
a bit of bleach in your gene pool is recommended. 50ppm should be good.
 
A couple more threads related to using sodium hypochlorite in hydro. Lots of people use it because it works.

Could use some advice about my cannabis plants!

Hello all, new grower here. First attempt with dwc. Strawberry banana Pineapple express #2 Both from Canuk Seeds. Having a bit of an issue with my Pineapple express. Both seeds were Germinated in rockwool at the same time... Strawberry banana spouted first and Pineapple express was a day or...
rollitup.org

Bleach for running sterile rez?

CDC states approximately .75ml/gal in clear tap water is safe for sterilization for drinking/consumption. I'm guessing that's an okay ratio to use in a rez for R.O. water? (7.5% sodium hypochlorite) Can anyone who uses bleach give some suggestions please? (I know h202 and pool shock are...
rollitup.org
 
This is actually a VERY interesting read, upon some sifting.

I was given Athena Blended nutrients a while ago & finally just cracked them .. ... I'm weird, i always "smell" things and the Cleanse product was a blast of bleach to the face!! YIKES. So it's pretty much chlorine-water. And clearly I don't need to explain that product here. . ... Anyways thanks for the info, Happy Thanksgiving!!!
 
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