Water Chiller Size

ttystikk

ttystikk

Well-Known Member
I discovered that with proper water mixing, healthy plants will happily thrive in water in the mid 70s, or up to 25C. The cheapest option is to not need a chiller at all.
 
Takeshy

Takeshy

Well-Known Member
ttystikk said:
I discovered that with proper water mixing, healthy plants will happily thrive in water in the mid 70s, or up to 25C. The cheapest option is to not need a chiller at all.
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And how about pythium? And DO levels?
Lower water temps will help to prevent pythium aswell as increasing the DO levels.
 
ttystikk

ttystikk

Well-Known Member
Takeshy said:
And how about pythium? And DO levels?
Lower water temps will help to prevent pythium aswell as increasing the DO levels.
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Well that's the conventional wisdom, isn't it?

Funny how my own observations don't seem to square with it.

Keep in mind that there are no chillers in commercial greenhouse hydronic systems.

Oxygenation has a lot more to do with good circulation and agitation than just temperature.
 
dbkick

dbkick

Well-Known Member
ttystikk said:
I discovered that with proper water mixing, healthy plants will happily thrive in water in the mid 70s, or up to 25C. The cheapest option is to not need a chiller at all.
Click to expand...
Not sure that it will be much cheaper since to these greenhouses that don't use chillers usually use probiotics which can be pricey.
 
Keesje

Keesje

Well-Known Member
They don't use chillers because there is no need for chillers. Except if you start a greenhouse in the Mojave dessert.

But serious. There is a relation between DO and temperature, but it is not as dramatic as people think.
Also diseases can be prevented in other ways.
 
ttystikk

ttystikk

Well-Known Member
dbkick said:
Not sure that it will be much cheaper since to these greenhouses that don't use chillers usually use probiotics which can be pricey.
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My chiller is bigger than yours, bitch! LMAO

Seriously, no probiotics or sterilants required.
 
ttystikk

ttystikk

Well-Known Member
Keesje said:
They don't use chillers because there is no need for chillers. Except if you start a greenhouse in the Mojave dessert.

But serious. There is a relation between DO and temperature, but it is not as dramatic as people think.
Also diseases can be prevented in other ways.
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Yes. Condoms.

Speaking of drama...

Lol
 
PetFlora

PetFlora

Well-Known Member
In controlled environments, like greenhouses, where temperatures are maintained, and bugs can be eliminated by use of double entry, and a clothing change, waterfalls or the like wil work great. the ony caution is checking water/solution temps in case the pump is inside the rez.
 
Keesje

Keesje

Well-Known Member
PetFlora said:
In controlled environments, like greenhouses, where temperatures are maintained, and bugs can be eliminated by use of double entry, and a clothing change, waterfalls or the like wil work great. the ony caution is checking water/solution temps in case the pump is inside the rez.
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Have you ever been in a greenhouse in your life?
Perhaps at NASA or some other soffisticated labaratory they use double doors and such, but in most greenhouses they couldn't care less. Perhaps some commercial marihuana growers also take such precautions.
They also do not care that much about high temperatures of their reservoir. As long as it doesn't get out of control.
They put pumps in their reservoir. Waterfalls you hardly see there. They just use some recirculation now and then. Some use venturis, but experiments show that it is not sure if they do any good.
 
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Keesje

Keesje

Well-Known Member
PetFlora said:
Im on it. This is cheaper than a chiller to buy and operate. The site has Research tab, just haven't gotten there yet

https://www.o2grow.com/store
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DO and chilling are 2 different things.
Chilling is important for preventing diseases.
Not for getting more oxygen in your water. That is just a side-effect of lesser importance.

There is plenty of DO available for your roots in water of a temperature range from 20 to 30 degrees Celsius (68 to 86 Fahrenheit)
No need to buy a chiller to get more oxygen in your water. The difference of the amounts of DO in water of 68 degrees and water of 86 degrees is negligible.
 
PetFlora

PetFlora

Well-Known Member
Water chillers serve a purpose, but not creating O2

Do you agree that keeping water temps < 80*s helps maintain DO in solution, or perhaps more importantly keeps root/plant diseases at bay?

While it seems you will never come around to understanding that what appears negligible in your physics books may not apply in ther real world... where are the A/B studies? Anyway, let's get off that topic.

I have been in contact with Dennis from O2Grow, and my scientist acquaintance who posted the videos I linked in these threads sent this link, which is an eye opener, and kinda proves you right, but not for the reasons you have been espousing. Oh, and by the way cancer cells cannot thrive in an oxygen rich environment

https://steemit.com/steemit/@verbz/fantastic-properties-of-nano-bubbles
 
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