I am planning a flood and drain setup and have read multiple threads about how people aren't able to get enough space between their plants and the Gravitas...My concern is with the height of the drain table that there may not be enough space...Anyone know the distance required between the plants and the light?
Gavita 1000's with 8 foot ceilings...
- Thread starter wesley90
- Start date
Aeroknow
Well-Known Member
3' for 1150 watts works everytime. I can get them a little closer, but 3' is good
Can you take off the ballast and run it remotely? I personally haven't ran gavitas, but I run phantom DE's where you can mount the ballast remotely, and save some height.
I am looking to keep them short, like in this post:
https://www.rollitup.org/t/get-a-harvest-every-2-weeks.6592/
I believe he only allows them to grow 3 feet tall...how tall are your trays off of the ground? If I can keep the trays 2 feet off the ground it should be ok...I want to do a perpetual grow like the grow in the link above.
Is there any RF interference the the phantoms? I am looking at the Gravitas because they are the best in the industry from what I have read.3' for 1150 watts works everytime. I can get them a little closer, but 3' is good
Can you take off the ballast and run it remotely? I personally haven't ran gavitas, but I run phantom DE's where you can mount the ballast remotely, and save some height.
shanepdx
Member
My trays are on a wood cart with wheels, approx 6" off the ground. here is my math;
9' ceilings
-2' for tray,cart, and pot (7gal.)
-1.5' for fixture
-3' canopy distance from light.
leaves 2.5' for plant
I went with the 750's because of the above math. I was told that 1000's need a foot or so more than the 750's
YMMV
9' ceilings
-2' for tray,cart, and pot (7gal.)
-1.5' for fixture
-3' canopy distance from light.
leaves 2.5' for plant
I went with the 750's because of the above math. I was told that 1000's need a foot or so more than the 750's
YMMV
patrickkawi37
Well-Known Member
get the 6/750. If the 1ks get closer than 3 feet they don't perform any better than a regular 1k. Too much light and heat .
Aeroknow
Well-Known Member
No RF interference
Oh, and have you checked out nanolux? The way they orient the ballast reduces wasted height. Hearing allot of good shit about them lately
As Gavitas or a different brand? The 6/750 Gavitas are only like 30 dollars cheaper than the 1000w from the source I am looking at...not that it matters, what works is what matters, but curious as to which 6/750's you reccomend.
The new nanolux CMH 630 watt system? Isn't CMH only for veg? Oh, and I didn't mention this earlier but there will be no veg at all, the clones will go straight to 12/12No RF interference
Oh, and have you checked out nanolux? The way they orient the ballast reduces wasted height. Hearing allot of good shit about them lately
Aeroknow
Well-Known Member
How high are your trays?
I haven't gotten any yet...still planning things out...I would like to have a setup comparable with https://www.rollitup.org/t/get-a-harvest-every-2-weeks.6592/
Any suggestions keeping in mind the 8' ceilings?
Any suggestions keeping in mind the 8' ceilings?
Aeroknow
Well-Known Member
Yes, a run-to-waste sog setup
The tray/s would only need to be about 6" off the ground, basically just high enough to accommodate drain fitting and an elbow. This is assuming you can pipe the drainage out of the growroom this way.
Couple that with the DE setup i'm talking about, it's doable. I do it at one of my setups
16 plants per 4'x4' tray. A basket drip stake per plant(2 is safer though). I prefer 1 gal mesh bottom pots with coco. But have done it with other media many times.
If you can mount the hood(without ballast, or that nanolux) directly to eye bolts in the ceiling: between the fixture and the 3' space needed, that's a little less than 4'. Leaves you a little more than 4' for tray and plants
Last edited:
Yes, a run-to-waste sog setup
The tray/s would only need to be about 6" off the ground, basically just high enough to accommodate drain fitting and an elbow. This is assuming you can pipe the drainage out of the growroom this way.
Couple that with the DE setup i'm talking about, it's doable. I do it at one of my setups
16 plants per 4'x4' tray. A basket drip stake per plant(2 is safer though). I prefer 1 gal mesh bottom pots with coco. But have done it with other media many times.
Do you have any pics or designs of the DTW setup? Honestly I haven't looked into DTW at all.
How much more money are you spending on nutrients/water vs. a regular F&D setup?
Do you have any pics or designs of the DTW setup? Honestly I haven't looked into DTW at all.Yes, a run-to-waste sog setup
The tray/s would only need to be about 6" off the ground, basically just high enough to accommodate drain fitting and an elbow. This is assuming you can pipe the drainage out of the growroom this way.
Couple that with the DE setup i'm talking about, it's doable. I do it at one of my setups
16 plants per 4'x4' tray. A basket drip stake per plant(2 is safer though). I prefer 1 gal mesh bottom pots with coco. But have done it with other media many times.
If you can mount the hood(without ballast, or that nanolux) directly to eye bolts in the ceiling: between the fixture and the 3' space needed, that's a little less than 4'. Leaves you a little more than 4' for tray and plants
How much more money are you spending on nutrients/water vs. a regular F&D setup?
Aeroknow
Well-Known Member
I don't have many pics on my phone atm, but I'll try to put together some pics for you in the near future.
You know, i've done practically every type of setup out there over the years, and, there's really not that much more nutes used in run to waste. If run to waste does use more(it's close), nickel dime IMO.
OK, awesome!
So for a 4'x4' tray, how big of a res are you using? How often does it need to be refilled?
Also, with the tray 6" off the ground, how are you draining the water out? I assume you have the tray parrellel to the ground and use a tap thru the bottom of the tray (just like F&D) and collect the waste in a small bin underneath the tray...are you using like a submersible pump to drain out the waste water from the waste bin?
Aeroknow
Well-Known Member
In this situation, you would need a low profile reservoir. A 50gal botanicare rez should last you about, oh i dunno, about 4-5 days? Depends on how thirsty the plants are.
Read that post i posted earlier if you would. I'm talking about running drain tubing directly out the growroom/building. Collecting runoff and then pumping it out works no problem in other setups, but that extra height would fuck what you are trying to achieve here