ttystikk
Well-Known Member
You're very welcome!
Best way to combat pythium and root rot in all hydroponic growing methods.
- Thread starter Vonkins
- Start date
twistedwords
Well-Known Member
Most efficient way in RDWC is to not use any airstone. You simply use the waterfall effect on the return line into your controller bucket, then in the controller bucket buy a pond pump 80 GPH is fine or even lower as long as it has the venturi attachment and presto the venturi will aerate the water and keep the water agitated. You could also use a powerhead from a fish store, yes the same ones aquariums use to oxygenate the water as this has a built in venturi plus it has a flume on it so you get the best of both worlds. The pond and aquarium market has all of this figured out. This will keep the water at ear maximum levels of DO depending on your location and the barometric pressure for the day.
Actually the best ambient air this world, our world has to offer always contains 80% N2 and 20% O2. A few aquarium venders have heard of and know about dissolving to much (air) nitrogen into the water, Supersaturating aquarium fish water with dissolved nitrogen causes gas bubble disease, aquarist commonly call the disease "pop-eye."
Question:
In your opinion, why do you think that pumping air through an air stone is not as efficient oxygenation as using a waterfall or a power head /air venture rig to entrain air into a flow of water, air used for the sole purpose of oxygenation?
Ambient air, whether the air is at sea level or at 15,000 ft elevation on a mountain, or in a SCUBA tank 500 feet below the surface of the Pacific Ocean contains 80% N2 and 20% O2.
J
twistedwords
Well-Known Member
Do you want my opinion or scientific fact? I am going with scientific fact with a venturi device as a air stone does nor venturi does not inject any oxygen in the water. The venturi however will agitate the water with air as it passes through the venturi device so it happens instantly, then when the bubble rise from the venturi into the surface of the water further agitation from water happens again, then with the flume in happens a 3rd time. So you get 3 times the amount of agitation compared to one time of agitation from a air stone, hence more efficiency and more agitation of water to air surface.
Budley Doright
Well-Known Member
^^^^ with my setup I did start out with air pumps and stones as well as using the method I use now and soon realized it was unnecessary, and my PH was way more stable. I also drilled a hole in the output nozzle of the pump, 3/16 on a 60 degree angle, that shoots another stream up to the surface of the main Res. Until I switched to spray nozzles I never had issues. But by chilling the water my plants have shown more vigour and growth is phenomenal. Now I'm using one pump, no ph fluctuations and great plants ...... So far lol.
Please, let me be crystal clear this time, I ask for your opinion, not your perception of scientific facts... sorry you misunderstood. Let's begin again.
And your scientific point is ---- what?
You say, “I am going with scientific fact with a venturi device as a air stone does nor venturi does not inject any oxygen in the water.” You might want to fact check this one because air contains a little bit of oxygen, 20% O2 and this will dissolve in water albeit any O2 does not dissolve well in water.
***So what’s your point for this 3 phase aeration rig if it doesn’t dissolve oxygen into the nutrient water nor maintain minimal safe continuous oxygenation 24/7/months?
Stop, relax and focus… This is about oxygenating RDWC nutrient water, insuring that low oxygenation does not happen thus inhibiting outbreaks of Pythium fungal opportunist caused by low-oxygen environments. This is about preventing fungal outbreaks by maintain 100% DO saturation in nutrient solution.
You say, “So you get 3 times the amount of agitation compared to one time of agitation from a air stone, hence more efficiency and more agitation of water to air surface.”
I’m missing something here.
***What’s is your point for this 3 phase agitation?
***Are you trying to say that this the point of this 3 aeration run (triple agitation: running air through an air stone, air venture, rising air bubbles in water) you end up with a total of 60% oxygen that is going to instantly dissolve in the water? Air contains 20% O2 X 3 runs = 60% O2.
I hear your scientific facts and now I would like to hear your opinion.
***What will, “more efficiency and more agitation of water to air surface” really going to do?
Thanks for explaining this to me better so I can better understand what you are trying to accomplish with this 3 phase aeration-agitation rig.
J
twistedwords
Well-Known Member
I don't need you condescending shitface attitude first of all so you can stop right there troll.
It was already explained to you about Venturi injection. If you need more clarification google venturi injection in hydroponics. It will clarify your shit attitude. I am not your slave so go research it yourself.This is your game and I am not playing it. so fuck off.
I'm so sorry you're having such a bad day, hope you get to feeling better tomorrow or Sunday and can clean up a little. Bless you son.
J.
twistedwords
Well-Known Member
then quit fucking up my day! BOY
ttystikk
Well-Known Member
I don't have a venturi fitting but I could incorporate them into my system with extreme ease. Are they inexpensive?
I have been using waterfalls in my RDWC for years. They replaced air stones and do a better job.
I believe that using a spray nozzle on the waterfall end to actively jet the water down into the water's surface would also be beneficial by stirring the tub and gently agitating the roots, thus ensuring optimal temperatures, nutrient levels, pH and dissolved oxygen.
I have been using waterfalls in my RDWC for years. They replaced air stones and do a better job.
I believe that using a spray nozzle on the waterfall end to actively jet the water down into the water's surface would also be beneficial by stirring the tub and gently agitating the roots, thus ensuring optimal temperatures, nutrient levels, pH and dissolved oxygen.
Well, Potty Mouth...
You are no doubt really having a bad, bad day today, bet your dog is hiding under the bed. Some quiet time in a dark room, no noise, TV or radio helps calm nerves sometimes when you lose control of your emotions, cursing, name calling and tacky behavior in public.
2 blessings for you this time son.
J
AlphaPhase
Well-Known Member
What is the most efficient and effective way to add do into a reservoir for ebb and flow, besides a air stone? For while I never used an air stone in the res, but recently added one. Is there anything else I can do, anything you recommend? I'm going to pick up a DO meter in the near future just for monitoring. How can I increase do and how much DO would be ideal? Thanks
AlphaPhase
Well-Known Member
Oh, I'd like to add that I'd highly recommend a chlorine meter if using pool shock. Chlorine is a micro nutrition plants need, but they don't need a lot. Also, it's useless to use chlorine if you can't measure the ppm because it's a fine line what will kill bacteria and not harm the plants. I have used it before successfully, but now I strictly use it just for my ez cloners. Works well and I've not had a problem, but for growing I've switched to beneficial bacteria as it seems more practical.
Chlorine is a great killer chemical. Been used in wars as chemical warfare over 100 years too. Breath the gas and it makes you cough and causes instant pulmonary edema.
Chlorine meters are way to expensive, but if you really need to test your chlorine concentration and you like "cheap," here's something for you that is a lot cheaper...
Insta Test 6 Six-Way Chlorine Pool Water Test Strips - 50 Count @ Wally World $12 for 50 test - that's only $0,24 per test.
Your welcome
J
Now that’s a great question… sure, there’s a lot you can do that will insure safe oxygenation and seriously inhibit fungal outbreaks 24/7/months if you really think it's that important.
When your oxygen limitation is air or 20% O2, many on the forums say the ideal DO is 100% DO Sat and the only way you can get that is using air is to chill the water to 64-68F, that's it, that's all that is possible to do. I’m sure you have heard this too.
Others would approach this oxygenation issue directly, if a technical grower wants to increase his nutrient DO Sat at any water temp, he would certainly not hope and depend on 20% O2 (air), but would use 30-100% O2 gas. This does require thinking out of the box beyond the average mind set limitations.
Breaking this down to real simple, if you want higher DO, increase the source O2%. Oxygenation does not get any simpler than this and increasing the O2% greater than 20% works great every time, 24/7… that’s real scientific fact. Oh, and dissolve the O2 with a packed column, cone or oxygen -injector… forget the diffusers.
If a man is really thirsty and dehydrated, you would give him more water to drink, right?
If your plants need more oxygen, give them more oxygen, right?
Or, when your plants need more oxygen, give them more chlorine and buy a water cooler?
There ain’t nothing to insuring and maintaining safe oxygenation, this is just common since stuff.
J
Budley Doright
Well-Known Member
Pretty sure most didn't
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rkymtnman
Well-Known Member
since you seem to be so smart and critical of others, please show us your pics of how you built an O2 infused DWC setup so we can critique it. enough with the hypothesis, let's see some EVIDENCE!! or is all this scientific conjecture on your part?
rkymtnman
Well-Known Member
or i could just follow the directions on the bottle? cost per test $0.00