Ok Remeber it's a 4x4 od trey and has runoff Chanel's in it so should I get the mat? And it does want to be FD right?It was just nft spreader mat. I dont think you`ll have that much excess on the floor and in that chamber you`d need a gallon or two to make a puddle
dirtless dickkheads aa adventure
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Trichy Bastard
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The roots may stop up the channels I am thinking, so perhaps using the nft spreader mat will still be a good idea? Just do a google search, it's not too pricey- maybe 30 bucks or so for what you'll need. You could try without and if you see enough water on the bottom you'd probably have time to order and install it before the roots got to the bottom. Sorry what do you mean by FD?
I admire your enthusiasm, but you'll be hard pressed to beat G-love... Well, if you were as good as him, and didn't have the bad luck and little mistakes he made then you would be doing very well actually- nearing that 2g/watt number
WD (wastetodrain)is what I meant I have the bottom angled to drain to te drain hole should I set it level? And I think 18" would be smart cause I Remeber u saying g love had 2 ft colas!! with a scrog I'd live to get to the 2 g per watt mark!The roots may stop up the channels I am thinking, so perhaps using the nft spreader mat will still be a good idea? Just do a google search, it's not too pricey- maybe 30 bucks or so for what you'll need. You could try without and if you see enough water on the bottom you'd probably have time to order and install it before the roots got to the bottom. Sorry what do you mean by FD?
I admire your enthusiasm, but you'll be hard pressed to beat G-love... Well, if you were as good as him, and didn't have the bad luck and little mistakes he made then you would be doing very well actually- nearing that 2g/watt number
Trichy Bastard
Well-Known Member
It might be fine the way it is, can you post a pic?
I only have my iPhone I'll try to with it
Ok so it is drain to waste right a lil confused cause ik the atomix also made a AA dwc combo
Trichy Bastard
Well-Known Member
Really, it's your choice- (but I think you want DTW)
It might not hurt to make provisions to recirculate in early veg if need be. Just to save on some nutes and water if you have to mist heavy, but perhaps not even necessary. You chamber is so large, perhaps making a siphon box like I did (is that what we'll call it) would make sense, plus you can adjust the siphon height easily that way. If so, you'll want to also make a way to route the runoff back to the "siphon box".
Ok my nutes drain into a condensate pump so I can pump them wherever I have a res now but what's this siphon box?Really, it's your choice- (but I think you want DTW)
It might not hurt to make provisions to recirculate in early veg if need be. Just to save on some nutes and water if you have to mist heavy, but perhaps not even necessary. You chamber is so large, perhaps making a siphon box like I did (is that what we'll call it) would make sense, plus you can adjust the siphon height easily that way. If so, you'll want to also make a way to route the runoff back to the "siphon box".
Trichy Bastard
Well-Known Member
I explained/took pics on my thread last week. It's just a small box that the height can be adjusted on that the siphon pickup tubes for the nozzles dip into. There's probably other ways to do it, perhaps even better ways, but it's just what I came up with to give me on the fly nozzle siphon height adjustments.
O ok sounds perfect!
so just to be clear Im gna try and get my walls cut this week and put together so you guys think that 18'' just want to make sure before I cut any and i wish I had decided this early before cutting 2 4x8 panels of it but owell ill use the cutt offs for my top! and where are the nozzles going to be placed on this chamber? Ill need them in hand befors I decide to drill any holes though
Trichy Bastard
Well-Known Member
I think 18" is the consensus... Atomizer knows where the ports for the nozzles were heightwise on the Atomix, might as well go for that height too if it makes sense...
I think I'm starting to get jealous of your chamber... Call it "chamber envy"
The syphon height of the atomix was around 6" with a full res, the nozzle was positioned at roughly one third chamber height from the bottom. Its worth a go but bear in mind the mist will be a lot wetter at lower syphon heights due to the higher flowrate. You could increase the air pressure to compensate and use a longer pulse to fill the chamber, especially true with the nozzle mounted low in the chamber when the roots have only just cleared the netpot.
Syphon fed nozzles are kind of strange, there appears to be a boundary point (eg 18" syphon height) where increasing the air pressure increases the flowrate but below 18" increasing air pressure reduces the flowrate. It seems the relationship between the venturi/gravity/frictional resistance of lifting the nutes higher and syphon height has a balance point where the effect reverses.
The sensible approach is to decide on the best position for the nozzle in relation to the floor and lid of the chamber (25% up from the bottom, halfway or 25% down from the top etc) and use blocks to raise or lower the whole chamber to get the correct syphon height. If you just move the nozzle up/down to vary the syphon height you`ll be introducing a positional variable as well. The best idea is to do what TF did and build a test chamber to fnd the best settings and then build the big chamber. Repositioning pressure fed nozzles is a lot easier because they dont rely on the syphon height
Syphon fed nozzles are kind of strange, there appears to be a boundary point (eg 18" syphon height) where increasing the air pressure increases the flowrate but below 18" increasing air pressure reduces the flowrate. It seems the relationship between the venturi/gravity/frictional resistance of lifting the nutes higher and syphon height has a balance point where the effect reverses.
The sensible approach is to decide on the best position for the nozzle in relation to the floor and lid of the chamber (25% up from the bottom, halfway or 25% down from the top etc) and use blocks to raise or lower the whole chamber to get the correct syphon height. If you just move the nozzle up/down to vary the syphon height you`ll be introducing a positional variable as well. The best idea is to do what TF did and build a test chamber to fnd the best settings and then build the big chamber. Repositioning pressure fed nozzles is a lot easier because they dont rely on the syphon height
well dont be your set up is just as good n already up n running.I think 18" is the consensus... Atomizer knows where the ports for the nozzles were heightwise on the Atomix, might as well go for that height too if it makes sense...
I think I'm starting to get jealous of your chamber... Call it "chamber envy"
ok well im gna have to wait til I get the nozzles then. the meaurement is from where the 1/4'' jg tubing hits the water/nute solution in the res up to the nozzle right? so if my nozzle is 6'' from the bottom of the chamber ( bottom of the chamber is sitting on 2x4 so its 1.5" off the floor of the tent) and then my res is on the outside of tent sitting on the ground which is 10" from the floor of the tent cause my tent is up on cinderblocks, the res is 12'' high so if its all the way full my siphon height would then be 7.5 '' right?The syphon height of the atomix was around 6" with a full res, the nozzle was positioned at roughly one third chamber height from the bottom. Its worth a go but bear in mind the mist will be a lot wetter at lower syphon heights due to the higher flowrate. You could increase the air pressure to compensate and use a longer pulse to fill the chamber, especially true with the nozzle mounted low in the chamber when the roots have only just cleared the netpot.
Syphon fed nozzles are kind of strange, there appears to be a boundary point (eg 18" syphon height) where increasing the air pressure increases the flowrate but below 18" increasing air pressure reduces the flowrate. It seems the relationship between the venturi/gravity/frictional resistance of lifting the nutes higher and syphon height has a balance point where the effect reverses.
The sensible approach is to decide on the best position for the nozzle in relation to the floor and lid of the chamber (25% up from the bottom, halfway or 25% down from the top etc) and use blocks to raise or lower the whole chamber to get the correct syphon height. If you just move the nozzle up/down to vary the syphon height you`ll be introducing a positional variable as well. The best idea is to do what TF did and build a test chamber to fnd the best settings and then build the big chamber. Repositioning pressure fed nozzles is a lot easier because they dont rely on the syphon height
Hi DH,
yep, the syphon height is measured vertically from the surface of the nutes to the centerline of the nozzle. The size of your chamber may help offset the low syphon height as it`ll take a fair amount of mist to fill compared to a smaller chamber. You wont be able to tell for sure until you get them hooked up for a test.
yep, the syphon height is measured vertically from the surface of the nutes to the centerline of the nozzle. The size of your chamber may help offset the low syphon height as it`ll take a fair amount of mist to fill compared to a smaller chamber. You wont be able to tell for sure until you get them hooked up for a test.
Ok sounds perfect then cause you said te atomix was 6" so sounds like I'm within range. So I'll have this built hopefully by sunday so 18" it is. An now ill unpatiently wait for my nozzles jk lol
Using the same syphon height will work if the aerolife nozzles have a similar spec to the atomix nozzles. Taking account of your extra chamber volume the flowrate could be a tad higher and still be in the ballpark. If the nozzles are completely different you`ll need to find the optimum syphon height, pressure and cycle timing by trial and error. Thats where the real fun begins
hey guys I have the nozzles in hand but Ive been working straight through the weekends unfortunately and stil need to fab my chamber but im gna try an get a jump on it soon enough I have evrything besides the piping for the nozzles which is on its way. where should I place these nozzles on this chamber?
Hi DH
Opposite sides of the chamber and staggered diagonally, ideally firing between 2 rows of plant sites. For a 9 site (3 rows x 3 netpots) chamber, you`d have one nozzle firing inbetween rows 1 & 2, and the other nozzle on the opposite side of the chamber firing inbetween rows 2 & 3.
Opposite sides of the chamber and staggered diagonally, ideally firing between 2 rows of plant sites. For a 9 site (3 rows x 3 netpots) chamber, you`d have one nozzle firing inbetween rows 1 & 2, and the other nozzle on the opposite side of the chamber firing inbetween rows 2 & 3.