Thinking Outside the Box

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SSR

SSR

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Shame that something interesting has sidetracked to pictures in signatures.

I stopped worrying about DO and micro (nano?) bubbles a good while back after having constant issues with them.

Interesting though, keep it up and see where it goes

schuylaar said:
don't limit yourself with someone else's 'box' think..who says there is even a box?
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I would agree with this, i dont see boxes.
I do see common thought and perspective but wouldn't put those people in a box lol.

Threads like these are why i finally signed up to this forum after many many years of lurking.
I too have thoughts about things and proven some of those thoughts (as best as i can outside lab conditions).
I won't be sharing them anytime soon as my face to face experiences sharing with people have been less than welcoming.
 
ttystikk

ttystikk

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SSR said:
Shame that something interesting has sidetracked to pictures in signatures.

I stopped worrying about DO and micro (nano?) bubbles a good while back after having constant issues with them.

Interesting though, keep it up and see where it goes


I would agree with this, i dont see boxes.
I do see common thought and perspective but wouldn't put those people in a box lol.

Threads like these are why i finally signed up to this forum after many many years of lurking.
I too have thoughts about things and proven some of those thoughts (as best as i can outside lab conditions).
I won't be sharing them anytime soon as my face to face experiences sharing with people have been less than welcoming.
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I've gotten brilliant results with no airstones or other injection devices at all- just waterfalls.
 
SSR

SSR

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ttystikk said:
I've gotten brilliant results with no airstones or other injection devices at all- just waterfalls.
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That's where I'm at now. Waterfalls don't clog, fail or need replaced lol

Edited to add: they don't cost anything aswell:bigjoint:
 
SSR

SSR

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PetFlora said:
I see you could care less about my wanting your BS signature eliminated. I reported you to the mods, and will not be adding to my thread until/unless they remove your posts.
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I honestly dont see the problem with his sig. I am new here though.

I've been down the road youre going and tbf unless youre willing to spend OR put work in IMO it just wasnt worth it.

Having said that I'm old and lazy lol. Its worth trying if youve never been there and tbf in the future ill revisit this using venturi mixers as theyre more reliable
 
S

schuylaar

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PetFlora said:
I see you could care less about my wanting your BS signature eliminated. I reported you to the mods, and will not be adding to my thread until/unless they remove your posts.
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so you're trying to cut your nose off to spite your face?

i'm entitled to a signature of my choosing as long as it's within TOS.

you have options, little baby..I can see why @UncleBuck speaks to you as he does..with you, he's right.
 
PetFlora

PetFlora

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SSR said:
I honestly dont see the problem with his sig. I am new here though.

I've been down the road youre going and tbf unless youre willing to spend OR put work in IMO it just wasnt worth it.

Having said that I'm old and lazy lol. Its worth trying if youve never been there and tbf in the future ill revisit this using venturi mixers as theyre more reliable
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Im probably a lot older

SO you looked back in this thread and noticed a huge face in every one of his posts, which has NOTHING to do with my thread. It's a distraction, and disrespectful when dropped into non political threads

Just came across this today, but are the attachments available for sale?
 
SSR

SSR

Well-Known Member
PetFlora said:
Im probably a lot older

SO you looked back in this thread and noticed a huge face in every one of his posts, which has NOTHING to do with my thread. It's a distraction, and disrespectful when dropped into non political threads

Just came across this today, but are the attachments available for sale?
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I see signatures but in honesty i bypass most people's without second thought, especially if they're political lol.

I can see why that is on the inlet of the pump but from an engineNERDing perspective that's a seriously bad idea

The pump impeller will micronise a lot of those bubbles which gets close to what you want but air bubbles will wear the impeller quite fast (relatively speaking).
I've seen orifice plates and impellers worn beyond use in weeks due to micro bubbles in industrial settings
Home DIY solution its perfect but with my background in instrumentation that made me seriously cringe, perhaps if it were fitted to the outlet although it wouldn't micronise the bubbles in the same way.

The attached image shows what i meant, in industry these are called eductors (or venturi mixers).
Having only used these in industry I'm hesitant to recommend any that you'll find online in places like amazon, ebay etc. but the principle is the same so they may work.
 

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PetFlora

PetFlora

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Fortunately, the mods I reported the signature issues to saw it my way, as they have been removed :bigjoint:

I was using venturis on my pumps prior to switching to waterfalls, but the DO emitter will eliminate pumps all together
 
SSR

SSR

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Your aim being to up DO content in the water using something other than water falls I'd take the mechanically simplest and most reliable approach.

In industry Venturi's are common and have many varying designs.
The 3 best I've seen were: one that allowed a gas stream to be injected centrally into the flow prior to the constriction, one used a double venturi (eductor mixing venturi) and lastly supersonic venturi homogeniser where the gas stream is held centrally through the constriction by the fluid flow until the deceleration point around 3/5 of the output length, here the supersonic shockwave shatters pretty much anything down to single digit micron sizes
Trouble is these are really expensive solutions and the bigger problem is that using air as you noted has problems.
Although I'd think the amount of nitrogen when the water becomes saturated would give more problems than the CO² in honesty.

A way for you to use the pump method in the video would be to simply bore a hole on the inlet piping around 2-3" before the pump and fit a small diameter tube with a tapered cut protruding a few mm from the central part of the flow and facing the pump.
Hope that all made sense.
Expect higher wear rates on your pump impeller though, its basically introducing cavitation which engineers work very hard to prevent in their designs
 
SSR

SSR

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Btw. The image i posted isnt the same as you find used in aquaria.
Aquaria Venturi's don't have a mixing zone
 
Budley Doright

Budley Doright

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PetFlora said:
Did you somehow miss this? As a 5+ year home grower/experimenter

I have the luxury of growing for my own use. One thing I can guarantee, every grow has been excellent even though yield was low, and/or plants looked shitty...

Now, feel free to contribute something to the subject, but this one was in very poor humor.

Kudos though for taking the time to c/p multiple hater comments. Should they chime in, others here will know their bias
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I’ve seen most of your grows on here and yes your right they do look like shit, but yes shitty looking plants can still get you stoned, I’ve grown a few lol. But, when growing indoors the ideal is to optimize the cycle to get the most with the least amount of energy and this is where IMO you have failed. I do give you credit though for posting what I consider subpar plants that show what doesn’t work. Waterfalls work very well and grow, for most that try, really nice, big plants. I’m not sure what your agenda is with this persistent O2 generator thing but until you have it in hand and get it up and running (you said a couple of months, a month ago btw) why are you talking/promoting about it in multiple threads, I just don’t get the why. It’s somewhat reminiscent of J Henry ..... I cringe at that name lol.
 
PetFlora

PetFlora

Well-Known Member
SSR said:
Your aim being to up DO content in the water using something other than water falls I'd take the mechanically simplest and most reliable approach.

In industry Venturi's are common and have many varying designs.
The 3 best I've seen were: one that allowed a gas stream to be injected centrally into the flow prior to the constriction, one used a double venturi (eductor mixing venturi) and lastly supersonic venturi homogeniser where the gas stream is held centrally through the constriction by the fluid flow until the deceleration point around 3/5 of the output length, here the supersonic shockwave shatters pretty much anything down to single digit micron sizes
Trouble is these are really expensive solutions and the bigger problem is that using air as you noted has problems.
Although I'd think the amount of nitrogen when the water becomes saturated would give more problems than the CO² in honesty.

A way for you to use the pump method in the video would be to simply bore a hole on the inlet piping around 2-3" before the pump and fit a small diameter tube with a tapered cut protruding a few mm from the central part of the flow and facing the pump.
Hope that all made sense.
Expect higher wear rates on your pump impeller though, its basically introducing cavitation which engineers work very hard to prevent in their designs
Click to expand...

I've done the venturi thing, too
 
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