Grow Mediums Cannabis Root Rot is often caused by low oxygen problems or when grower’s fail to insure safe DO

[puggle6]

Yes, and no.. in an O2 enriched environment any fuel source is supercharged you can end up with a flash fire, shit will just burn out of control, even shit not designed to burn!

Pure gasses tend to be corrosive also, O2 oxidizing and CO2 corrosive so consider anything like a power board being attacked and causing an ignition source.

I'm a mechanical engineer so not exactly my field but I used to manage a eWaste recycling plant and printer toner was always a concern. When crushing and extracting the left over toner there is a good chance of a dust explosion if the air/fuel ratio becomes just right! Self combust! Massive massive explosion, wall of flame, people incinerated everywhere! Terrifying!

Enritching an environment with O2 is similar in that those ratios could be reached far easier and with much less base fuel (ie organics) and with oxygen much more intense!

Again, people will have a go at it and that's fine but really probably want some redundant control measures and fail safes!

 

[puggle6]

 

[Henry]

fettle, Do you think it is possible to use oxygen gas safely anywhere?

From an engineering point of view, can you think of anything good that can come of using or even being around pure oxygen gas?

Big Dan careless behavior using pure O2 is scary, sure looks dangerous.

Hospital probed after patient catches fire during surgery https://nypost.com/2016/05/01/hospital-probed-after-patient-catches-fire-during-surgery/ May 1, 2016

This should cause everyone nightmares for the rest of your life if you really take this O2 stuff seriously… imagine this happening to you when you are being rolled into the hospital operating room… clearly oxygen is so dangerous it should be totally banned everywhere and never used again. It’s much more dangerous than anyone could imagine.

Imaging the explosive and fire hazards of aerosolizing pure 100% ethyl alcohol with pure 100% oxygen and breathing this concoction. This is a common Rx to treat pulmonary edema/congestive heart failure. Now if this ignited for any reason (spontaneous combustion), it would blow your chest apart in less than a heartbeat and cause a mighty hot fire.

How in the world do you extinguish a 100% oxygen enriched fire? Or just get out of the way and let’er burn.

 

[9bear]

You want oxygen use 35% hydrogen peroxide cut @ 10-1 to 3.5 % and water your plants and save blowing your ass from here to timbucktoo.

 

[puggle6]

@Henry of course O2 is perfectly good for thousands of applications, it just needs control measures.

Think about this.. thousands of pounds of metal passing within a few feet of each other at 200kph or 120mph thousands of times a day with no guards or barriers.

Take it to seriously and you wouldn't get in a car and drive down a 2 way road now would you? Its the controls at play that minimise the risk of catastrophes lol

I've worked in refineries which we call "crackers" and to just drill a hole in some steel takes half a day and about 6 people, not to mention things like electrical switchboards etc, special boxes and a special subset of standards and laws etc

I am not about to design and publish anything without full reference to the various engineering standards and redundant systems needed to keep me from going to jail for helping someone kill themselves haha!

And I have enough trouble deciphering some of those standards such as IECEx let alone explain them and why its a $200 special order valve you need etc.

Sure it is possible to ghetto something up and perhaps stay safe, there may also be other gas mixes that may work (Nitrous perhaps, less dangerous for sure but honestly haven't considered it until now) Nitrous Oxide is still an oxidizer though and iirc there are some issues with certain gases and environmental factors like UV, Ozone etc doing weird things if combined.

It is kinda interesting tho thinking about gas supplementation, I'm happy to keep it in my head and not my tent for now lol!

f6

 

[puggle6]

Yea I think O2 needs to pretty much use all the available fuel before it goes out, bit like a magnesium fire, they don't go out that easily when they get going.

Hell there's underground coal fires that have been burning for like 50years

lol, that a spoof news story there Henry? never heard of being set on fire by your anaesthetist!

 

[Henry]

You want oxygen use 35% hydrogen peroxide cut @ 10-1 to 3.5 % and water your plants and save blowing your ass from here to timbucktoo.

I have heard that too.

 

[Henry]

Yea I think O2 needs to pretty much use all the available fuel before it goes out, bit like a magnesium fire, they don't go out that easily when they get going.

Hell there's underground coal fires that have been burning for like 50years

lol, that a spoof news story there Henry? never heard of being set on fire by your anaesthetist!

No spoof at all, the real deal – most people have no clue about these dangers.

GOOGLE “oxygen fires in hospitals”. Scary stuff !

GOOGLE “explosions in hospital operating rooms”, Real scary stuff !

Where in the world does the oxygen come from that keeps underground coal fires burning for 50 years? Coal needs >18% O2 to burn.

 

[NorthernLights_420]

Battled this shit on my seedlings my first grow. Thought it would be a great idea to put my room in the hottest room in my house. Mid 80s. Started smelling awful so google search I went and found I had root rot (pythium) I tried bleach water nothing, I bought physan 20 and cleaned all my equipment with it diluted with water and bought some h202 from a local shop. Took me two weeks to figure it out. I also got some hydroguard to prevent it again and moved my plants on the basement floor. The coolest place in my house is the basement. Never had issues since I defeated it and use hydrolysed now and try my absolute best to keep water temps in check below 72 degrees and above 62 degrees. 68 to 72 is optimal but cooler works too. Better safe then sorry when it comes to that stinky pain in the ass shut. Costed me lots more money right off the bat. Root rot sucks. Avoid it if you can with hydroguard or by running sterile with sodium hypoclorite or h202 sterile doesn't work with hydroguard tho. I use 0ppm ro water

 

[The Iconoclast]

This is why I use a shallow water culture rather than a deep water culture.