Mr.Sputnik
- 1,010
- 63
What's your recommendation for going sterile? I have read H2O2, bleach, zone, chlorine, chloramine, physan 20, naccosan, UV, RO, UC roots, root guard, ect ect.
Please list what you use in ml per gallon and how often/when each product is added.
Also please mention your procedure and products used for cleaning your equipment between runs.
Please no live vs sterile debates.
I currently use:
GH Maxi Grow powder
GH Maxi Bloom powder
GH Diamond Nectar humates
Mad Farmer fulvic
Maxicrop seaweed
Botanicare Cal Mag
Pro Tek Silica
Humbolt Snowstorm last 3 weeks
Set to ~750ppm 6.2ph
1.5ml per gallon 34% H2O2 (mad farmer)
0.5ml per gallon bleach
My water is well water filtered through a 1 micron water filter, tested with no bacteria present.
I clean/scrub everything with simple green and sterilize with H2O2. I run strong H2O2 through my system between runs but have the feeling I need to use another product to run through my chiller and plumbing to get it properly cleaned and sterilized. I have some salt buildup inside my plumbing as well and I am curious to know what I should use to get rid of it. I was considering CLR cleaner but I am open to other recommendations.
Thank you in advance for your replies.
It was a between run cleaning so no plants. It can be used clean up the system with plants in it, its a fungicide, but I think that's more for people running non sterile soups as a maintenance. But what do I know ? I'm only running a 4 module uc, have 1 grow with it under my belt and am a relatively new grower.......the bigger growers probably have more problemsbooboo111, Did you run the physan20 with or without your plants in the system?
I learned that the hard way, like everything else :)I just tried 15ml of physan 20 in a 250 gallon RDWC with sick plants. Filled it to the brim so it will soak the entire root zone. I'm leaving it for 12 hours.
Booboo111, I have had root rot issues in UC with roots clogging up the lines as well. Watch the flow coming out of the water pump every time you go into your room, if it has slowed down you've got a problem that needs immediate attention.
bleach works great too... 200ml to a gallon to make a "solution" then i use the mix at 2-4ml a gallon
how did 15ml/250gal work out?
Ive got veg 3months old in rdwc and sterile and all 4runs ive done worked out fine as far as root problems, ran ebb and grow buckets and could turn around a huge system from very bad to record run with bleach, h202 and uc roots lost 2-3 out of 90 and everything came back great actually left the dead ones in as they were inpossible to remove and system, finished great.... try doing a bleach flush then dump and refill with h202 then hit with uc rootsI can't really tell if the physan 20 did much of anything. It hasn't gotten worse or better, kind of hard to tell because the plants are pretty late into flower. I'm actually trying an earth worm casting tea, I'm at the end of my rope with whatever is causing this recurring issue I'm having. Out of 9 plants in an RDWC, usually 3 practically die, 3 yellow out and finish early (like day 52), and the last 3 just yield way less than average. I seems like any new sterilizer that I have been using in the reservoir just makes the problem worse or barely makes a difference and it can get damn expensive on top of that.
I read this grow log and it changed my mind on trying to keep it a sterile system. https://www.thcfarmer.com/community/threads/getto-trees.41432/
I'm really just curious if anyone has had good success over time going straight up sterile in a large RDWC system and how it was done. I think something got into my system that I can't kill off with sterilizers or it is being continually reintroduced to the system.
Is that bleach the reg strength 6% chlorine? Or the concentrated @ 8.25%bleach works great too... 200ml to a gallon to make a "solution" then i use the mix at 2-4ml a gallon
how did 15ml/250gal work out?
The 8.xx%... I actually use the boxed gallons of pool chlorine from Home Depot now same deal 200ml in a gal of ro h2o and 2ml a gal into system and re add as nessasarry once a week or every days for a few days if things look like they need it and keep killing it with clean root zones..... Have done 3ml - 4ml a gal when heading out for a few days when I needed sterilization, ran high as 10ml on ebb and grow sys and have never seem signs of girls not flourishing.... ran several more runs without a drop of uc roots and just hit a new record on weight! was still using it before as I had a few 5gals I bought that needed to get usedIs that bleach the reg strength 6% chlorine? Or the concentrated @ 8.25%
I read that 1ml/gal to sterilize water, then 1/2ml /gal every 3-4 days @6%
I cant find 6% chlorine anymore. What ratio would you run the 8.25%??
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?