my gravity fed air atomizing aeroponic system
- Thread starter oxanaca
- Start date
Nice vids. I couldnt find any spec on the #1`s either, its strange they list everything but that one. I guess they have lower flow rate than a #5 with the same head and air pressure so they may be doing less than 1.2LPH. The low temperatures may be allowing the 10 minute pause or perhaps the droplet size is smaller than ideal if its hanging around for more than 3 minutes. You should need a lot more than 200ml of nutes a day for a 288L chamber 
The root movement during the misting is a clue, the portions of the roots in the direct path of the mist seem to be doing better than the roots that get diffused mist. The direct mist contains most of the larger droplets.
The nozzle looks to have a decent amount of throw at 40psi, the pattern is quite narrow which could make covering a 4x4 chamber with 2 nozzles interesting but it should widen with lower air pressure. It might be worth comparing the #1`s mist pattern and throw by temporarily lowering the gravity feed height to 600mm and running 20psi air.
The root movement during the misting is a clue, the portions of the roots in the direct path of the mist seem to be doing better than the roots that get diffused mist. The direct mist contains most of the larger droplets. The nozzle looks to have a decent amount of throw at 40psi, the pattern is quite narrow which could make covering a 4x4 chamber with 2 nozzles interesting but it should widen with lower air pressure. It might be worth comparing the #1`s mist pattern and throw by temporarily lowering the gravity feed height to 600mm and running 20psi air.
so i didint notice any difference in the roots today so i began the test with the #5 nozzles.
i changed my settings to what you recommended
20psi at the nozzles air
600mm feed height
0.6EC 5.7ph
90seconds off to 1 second on
i changed them out at about 2pm and when i left at 4:30pm i noticed the roots didnt appear much wetter. i will leave these settings for 72 hours without touching them.
i would like to note the #1s mist plum as well as its throw Length is very weak compared to the #5s. however the #5 and #11 are almost identical, the #11 is just much wetter.
i changed my settings to what you recommended
20psi at the nozzles air
600mm feed height
0.6EC 5.7ph
90seconds off to 1 second on
i changed them out at about 2pm and when i left at 4:30pm i noticed the roots didnt appear much wetter. i will leave these settings for 72 hours without touching them.
i would like to note the #1s mist plum as well as its throw Length is very weak compared to the #5s. however the #5 and #11 are almost identical, the #11 is just much wetter.
im sorry i forgot to mention i had been running my #1 nozzles at 23psi or so. i guess there just a narrow angle nozzle the mist does hover about for 3 minutes or so.Nice vids. I couldnt find any spec on the #1`s either, its strange they list everything but that one. I guess they have lower flow rate than a #5 with the same head and air pressure so they may be doing less than 1.2LPH. The low temperatures may be allowing the 10 minute pause or perhaps the droplet size is smaller than ideal if its hanging around for more than 3 minutes. You should need a lot more than 200ml of nutes a day for a 288L chamber
The nozzle looks to have a decent amount of throw at 40psi, the pattern is quite narrow which could make covering a 4x4 chamber with 2 nozzles interesting but it should widen with lower air pressure. It might be worth comparing the #1`s mist pattern and throw by temporarily lowering the gravity feed height to 600mm and running 20psi air.
ill shoot some footage of my #5 tommorow. ill try for some better angles. maybe a top down. and ill spend a little more time with the camera in the chamber so you can get alittle better idea of whats going on with the different plants.
what do you think of my nozzle placement? do you think i should try to move them at all for the next grow
final note: the #1 nozzle has much smaller air orifices that the #5 nozzle. ill post a very sharp picture of the faces off all three nozzles next to each other tomorrow
final note: the #1 nozzle has much smaller air orifices that the #5 nozzle. ill post a very sharp picture of the faces off all three nozzles next to each other tomorrow
The nozzle placement looks about right to get even coverage. You`ll probably get more of a billowing plume from the #5`s with the higher flowrate/larger droplets compared to fine fog like mist from the #1`s. If you remembered to mark the water level in the bucket you can test the nozzle flowrate Assuming the nozzle specs and timer settings are accurate, the level should drop by no more than 1.4L over 24 hours. For a 5 gallon bucket that may be around 3/4", which shouldnt make much of a difference to the gravity feed height.
Assuming the nozzle specs and timer settings are accurate, the level should drop by no more than 1.4L over 24 hours. For a 5 gallon bucket that may be around 3/4", which shouldnt make much of a difference to the gravity feed height.damn im becoming forgetful
if you look at post # 29 in this thread youll notice at one point i had a few roots that i believe were at pinnacle of hairiness. take a look. if i remember right they were sheltered from the mist as i didnt push the neoprene insert in all the way. so i guess this plant is capable of cannabis style high surface area velvet roots.
i guess thats the benchmark then, now we've just got to figure out these settings.
if you look at post # 29 in this thread youll notice at one point i had a few roots that i believe were at pinnacle of hairiness. take a look. if i remember right they were sheltered from the mist as i didnt push the neoprene insert in all the way. so i guess this plant is capable of cannabis style high surface area velvet roots.
i guess thats the benchmark then, now we've just got to figure out these settings.
say i wanted to ditch my gravity fed resevoir and just go pressure fed could i use this gauge,
http://www.amazon.com/Low-Pressure-Gauge-5-PSI/dp/B004GEEHMI
and my watts p60 pressure regulator
http://www.isopurewater.com/Watts-P60-C-Water-Pressure-Regulator-14-0--125-PSI_p_2468.html
to supply my nozzles with water pressure of around 1psi. or do you think i would need a different gauge with a better resolution such as 0-3psi gauge
http://www.amazon.com/Low-Pressure-Gauge-5-PSI/dp/B004GEEHMI
and my watts p60 pressure regulator
http://www.isopurewater.com/Watts-P60-C-Water-Pressure-Regulator-14-0--125-PSI_p_2468.html
to supply my nozzles with water pressure of around 1psi. or do you think i would need a different gauge with a better resolution such as 0-3psi gauge
I think you`ll struggle to get the accuracy at 1psi or less if you try to control the water pressure directly. Setting up a header tank with a float valve is the obvious choice but if i was pressed i`d probably look at using regulated air pressure instead. Effectively you`d use the regulator to maintain an air precharge at a constant 0-1psi (0"-27" gravity head) as nutes are released from the tank. It wouldnt have to be an accumulator just an air tight vessel that can handle 1psi
You may have to account for additional positive or negative head as the water level changes in the tank, its pretty late here so i cant decide if that will apply or not
You`ll have bits and pieces laying around to mock up a test rig,it shouldnt cost anything to give it a go just to see what happens.
You can set the regulator and monitor the tank pressure using a homebrew manometer aka, a piece of clear tubing.
You may have to account for additional positive or negative head as the water level changes in the tank, its pretty late here so i cant decide if that will apply or not
You`ll have bits and pieces laying around to mock up a test rig,it shouldnt cost anything to give it a go just to see what happens.
You can set the regulator and monitor the tank pressure using a homebrew manometer aka, a piece of clear tubing.
you know your awesome atomizer just wanted to let you know that
funny thing i sort of already build exactly what you described, i wasnt sure what to do with it glad i didnt dissasemble it, i even have another air pressure regulator from my paint gun that i hardly ever use.
ill go get it and post a picture
shit it wasnt as i remembered. i think im going to try and use my dremel tool to salvage the gamma seal lid though.
funny thing i sort of already build exactly what you described, i wasnt sure what to do with it glad i didnt dissasemble it, i even have another air pressure regulator from my paint gun that i hardly ever use.
ill go get it and post a picture
shit it wasnt as i remembered. i think im going to try and use my dremel tool to salvage the gamma seal lid though.
so heres the faces of all three nozzles 1,5,11
ive had this thing for years its for fumigating. unfortunately it creates extremely fine particles and draws around 8 amps
the cloning project isnt going to good, two of the varietys hated this thing and started to rot, the third variety is doing swell, no losses.
i think i will put my new larger chamber on hold and just fill up my current chamber with these plants until i am more competent at cloning solar coleus, ive never had problems using a cloner to clone my other favorite plant, go figure.
ive had this thing for years its for fumigating. unfortunately it creates extremely fine particles and draws around 8 amps
the cloning project isnt going to good, two of the varietys hated this thing and started to rot, the third variety is doing swell, no losses.
i think i will put my new larger chamber on hold and just fill up my current chamber with these plants until i am more competent at cloning solar coleus, ive never had problems using a cloner to clone my other favorite plant, go figure.
The fogger may come in useful for raising humidity in the greenhouse when it gets warmer. If the bucket test is a success it`d be worth keeping an eye on ebay for a cheap 5gal cornelius keg, they`re stainless steel with a locking lid and good for 60psi, but expensive new. If the greenhouse is still down at 60F you can expect the roots to be a bit on the damp side but stick with it until the 3 days are up. When you change the settings every 5 minutes you just chase your tail and end up being none the wiser
i can get a cornelius keg at my local brewing and growing store for like $30, it will be in the 60s for the next 5 days at least, nasty weather. its actually much colder, but thats what my buddy keeps the thermostat set to, i feel you on the changing the settings every 5 minutes. seems like the best way to go is change one setting a little bit and then stick with it for 3 days unless things get worse.