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Something wicked this way comes
- Thread starter delta9nxs
- Start date
Speed of green
Active member
not sure if this has been asked yet but...
how much solution (water) your plants are going through, i'm trying to size a volume reservoir for an 18 site PPK.
also is there an ideal solution temperature? how hot is too hot?
Would circulating the solution on the plant side with a chiller in the control bucket create any problems you could foresee?
Also have you ever tested the brix level of your plants, They look very healthy.
how much solution (water) your plants are going through, i'm trying to size a volume reservoir for an 18 site PPK.
also is there an ideal solution temperature? how hot is too hot?
Would circulating the solution on the plant side with a chiller in the control bucket create any problems you could foresee?
Also have you ever tested the brix level of your plants, They look very healthy.
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i'm using 350 gals every 3-4 days with only 30-36 positions filled. 16 large in flower and the rest in various stages in veg. soon i will have 49 total and so i don't think the 350gals is enough. it will probably have to be filled every other day and that cost a lot of man hours. so i think i'm going to rip out the drums and install a 2000 gal cone tank instead. the cone tank does not take up nearly so much floor space as it is mostly vertical on a 6x6 footprint. maybe i can go a whole week without having to drag out the hose.
i regularly run 78-84f in the recirculating part and experience no negative issues. chillers are not necessary in the ppk and in fact may inhibit growth. the plants metabolic processes are enhanced by heat and retarded by cold.
i have run solution at 90f before i had ac at one site. no problems. we have folks here in oregon running the ppk outdoors with no chillers in record breaking heat and harvesting huge crops.
heat does not cause root rot, lack of oxygen does. since in the ppk the plant derives it's o2 from the atmosphere instead of the recirculating solution rot is not an issue.
but in general, in a sealed room, with an air temp around 82-84f and the containers all in full contact with a massive shaded concrete slab acting as a heat sink, the solution will be 78-80f most of the time.
if your chiller draws 10 amps you could be running 2 more lights instead.
no, i haven't messed with brix readings yet. but i plan to soon. i'm growing plants for extraction mostly and want to see if i can drive up terp profiles a little.
later
Speed of green
Active member
Thank a ton for that information, These systems will be in greenhouses.
You say you have folks already running these systems outdoors, can you give me any tips or point me in the direction of a thread?
I tested one of my indoor plants in a ppk and got a reading of 12, im not quite sure if thats a high reading or not.
Thanks again i really appreciate it.
You say you have folks already running these systems outdoors, can you give me any tips or point me in the direction of a thread?
I tested one of my indoor plants in a ppk and got a reading of 12, im not quite sure if thats a high reading or not.
Thanks again i really appreciate it.
https://www.icmag.com/ic/showthread.php?t=287351
outdoor ppk grow.
a brix reading of 12 is high for cannabis, although i have read of folks getting a 17-18 or so.
outdoor ppk grow.
a brix reading of 12 is high for cannabis, although i have read of folks getting a 17-18 or so.
Speed of green
Active member
nice thanks for the info.
1,2. Wreckage (arcata trainwreck x sage) 32 days
3,4. El Chapo. don't know anything about it yet except it tested at 30+%. 6 wks
5. Whitaker Blues 7 days
6. Apple Kush 27 days
7. White Master Kush x Monster Cookies 17 days
8. Blue Widow 17 days
9. Stardawg Corey x C99 14 days
10. Lodi Dodi
3,4. El Chapo. don't know anything about it yet except it tested at 30+%. 6 wks
5. Whitaker Blues 7 days
6. Apple Kush 27 days
7. White Master Kush x Monster Cookies 17 days
8. Blue Widow 17 days
9. Stardawg Corey x C99 14 days
10. Lodi Dodi
Attachments
if those are rocking , thats a sold out arena show!! 
that elchapo has some nice leaf coverage. not often u see the coverage so uniform across the leaf an to the leaf tip. it usually starts off the main ribs an veins an fades the further away it goes. doenst seem the case on the elchapo.
love the show delta!!
how many feet in between lights u got there?
that elchapo has some nice leaf coverage. not often u see the coverage so uniform across the leaf an to the leaf tip. it usually starts off the main ribs an veins an fades the further away it goes. doenst seem the case on the elchapo.
love the show delta!!
how many feet in between lights u got there?
if those are rocking , thats a sold out arena show!!
that elchapo has some nice leaf coverage. not often u see the coverage so uniform across the leaf an to the leaf tip. it usually starts off the main ribs an veins an fades the further away it goes. doenst seem the case on the elchapo.
love the show delta!!
how many feet in between lights u got there?
thank you!
the el chapo is totally covered, even the undersides of the leaves. can't wait to try it! this is not the "el chapo og" that is out there somewhere. completely unknown genetics. at least to me. i'll have it tested for potency anyway.
i'll have to measure on the lights but about 6.5' side to side and about 7.5' long ways on centers. i have too much aisle in between rows long ways and we are going to add another four plants to the big room which will tighten up the array.
i bought a 945 cmh and am playing with it.
we have turned on the second flower room and have loaded 3 of the 9 positions there. all sites are pumping water and are connected to the reservoirs in the veg room.
nutrient solution input is about 820 ppm at the .5 scale. the recirculating part is running about 900 ppm and 6.2 ph. very stable.
we're trying to get all sites loaded and get the whole process timing down so that there will never be an empty site.
that's all, folks!
Snook
Still Learning
Its been a long strange trip... glad to have been here...
https://www.youtube.com/watch?v=pafY6sZt0FE
thank you! just what i needed this morning! a taste of the Dead!
When i was looking into brix and plant sap ph I read that your brix was lower after a watering because it was ' diluted' (this was in regards to soil plants)
I have been curious as to how that would apply to a ppk plant. Would be interesting to see your brix reading 5 mintues before and 5 minutes after a watering..
Speed of green
Active member
They do fluctuate throughout the day, in the ppk its only a couple points.
since the plants are kinda always being watered with the PWT i think thats what keeps the numbers consistent.
Arent you running ppk sites outdoors? ive got a few detailed questions id like to ask, but i dont want to clog up D9's thread with off topic stuff.
zeke99
Active member
so for my first attempt I didn't pay close enough attention at the hydro store and ended up with Raindrip tubing instead of Hydrofarm. According to the packaging, the ID measurement is the same, but the Raindrip OD is smaller. Tried it with 3 different drill bits; 5/16", 4/16" and 3/16". 5/16" was too big, 3/16" was way too small. 4/16" was close, but no cigar. After about 15 minutes of struggling with it, I managed to pull it through and it still leaked a little bit. So lesson learned. Follow D9's directions to a "T"! I'm going to pick up a roll of true Hydrofarm 1/4" tubing tomorrow and try again with that.
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Speed of green
Active member
My questions are, how long do you veg, and have you run into any issues with clogging tailpieces using the 3" pvc/perlite setup with 7 gal tuff tubs. i plan on vegging for six weeks in full sun greenhouse, but i dont want to run into issues with roots clogging the system.
i would like to veg long enough to get to the 3lb+ range.
also is the pulse still a quart every 90 min, do you adjust the feed throughout the cycle or just set and forget? For your plumbing are you using a loop field with a big pump or individual pumps at each site?
I have three greenhouses that im adding to do this experiment, the layout is for 108 total plant sites in flower in two 130x20 greenhouses. the other greenhouse is 20x75 for veg. The layout is a plant in every 6x6 area with walkways and work space in between.
For these plants to fill up a 6x6 area i would imagine a longer veg than 6 weeks? right?
This is after two days of grading and learning how to use a skiploader, Thanks for the help!
i would like to veg long enough to get to the 3lb+ range.
also is the pulse still a quart every 90 min, do you adjust the feed throughout the cycle or just set and forget? For your plumbing are you using a loop field with a big pump or individual pumps at each site?
I have three greenhouses that im adding to do this experiment, the layout is for 108 total plant sites in flower in two 130x20 greenhouses. the other greenhouse is 20x75 for veg. The layout is a plant in every 6x6 area with walkways and work space in between.
For these plants to fill up a 6x6 area i would imagine a longer veg than 6 weeks? right?
This is after two days of grading and learning how to use a skiploader, Thanks for the help!
fliptopbox
Member
Do you just have a bolt/washer threaded into the ends of the tubes in your scrog rack? Curious how you put them together as I really like the simplicity of the design.
zeke99
Active member
