Need Help On Growing Hydroponic On Pvc

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Mo7sen.esg

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I 'm thinking about growing hydroponics outdoor in a pvc using gravity ,, and I need help and answers to my questions :

Does size matter in hydroponic grow ?
How much can a plant grow in a pvc system ?
Can plant survive outdoor ?
Should I use the non stop watering system ?
Should I stick just with soil ?
Thanks.
 
KneeDeep34

KneeDeep34

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Ive tried this method before and its ok. Ive not done it outdoors tho... I will say that useing 6in pvc or larger should be the best... Any smaller and the roots might clog the system... As far as size goes, i would think they could get quite large seeing that there wouldn't be any restrictions as far as roots are concerned. Ive found that the larger the root system, the larger the plant... I would however drill some small holes next to your plant sites to insert dowels or bamboo rods. That way if they start to lean you can tie them up... I would incorporate a system of drippers to feed tho. You can controll the feeding better and you dont use as much nute solution. Incressing the time feed as they get older.... I would def suggest using clones for this method tho. Unless your using fem. Seeds, putting all that work into it just to find out you have males sucks because you will have to remove it and the roots can become intertwined with other plants you want and can cause damage to other sites. Not to mention all the wasted time and energy lol
 
KneeDeep34

KneeDeep34

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Also, if your used to soil and need hydroponic advice hit me up. Ive got years of experience with both mediums.
 
DGP

DGP

1,214
263
I 'm thinking about growing hydroponics outdoor in a pvc using gravity ,, and I need help and answers to my questions :

Does size matter in hydroponic grow ?
How much can a plant grow in a pvc system ?
Can plant survive outdoor ?
Should I use the non stop watering system ?
Should I stick just with soil ?
Thanks.
How are you gonna keep the water cool? Above 70F your going to have bacteria issues/root rot and also low dissolved O2. I have thought about outdoor hydro but you would have to bury the system to keep it cool and even then you might need an chiller in addition to putting all the buckets and reservoirs underground.

De
 
KneeDeep34

KneeDeep34

235
63
How are you gonna keep the water cool? Above 70F your going to have bacteria issues/root rot and also low dissolved O2. I have thought about outdoor hydro but you would have to bury the system to keep it cool and even then you might need an chiller in addition to putting all the buckets and reservoirs underground.

De
Thats a great point... Maybe use concrete of some sort to hold the reservoir? I know concrete can suck the heat out of anything lol
 
M

Mo7sen.esg

4
1
Thank you guys for the reply .
The tube i'm using is 6inches pvc , and I 'll pull the water from 100 meter undergroud so it's very cold , and i am using feminized seeds for sure ,@KneeDeep34 the water can be stopped or it should keep moving every minute 24/24 ??
 
DGP

DGP

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263
IMO: You want to recirculate it continuously from a master reservoir that stays cool and has a constant level of nutrients in it. Or....do simple one bucket deep water culture.

To pull this off you would need to:

1. Understand recirculating hydro systems
2. Understand terrestrial cooling systems
3. Be willing to do a lot of digging in your grow space
4. Be able to fully test a system to make sure it doesn't leak into the ground
5. Be willing to maintain a sub terrestrial system (many issues here)

Also, you would need to consider:

1. this is a difficult experiment with a high likelihood of failure
2. Outdoor plants get huge and in hydro all the more, which means you need large buckets
3. Deep water is probably the best choice because Nutrient Film is subject to sudden loss of the crop due to a simple pump failure. Also NFT requires gravity and that really wouldn't work underground
4. Large buckets and reservoirs require a lot of water and nutrients (expensive)

Single Bucket DWC:

Maybe a simpler experiment would be to bury a 15 gallon bucket in the ground and put an air pump next to it and cover the pump to protect it from the weather and run an airline and stone into the bucket and put some kind of net pot over the top and insulate the top just leaving an opening for the plants trunk. In-other-words a single bucket non recirculating deep water culture setup buried in the ground for cooling.

Hope this makes sense. I have done NFT, DWC and RDWC as well as top feed RDWC in my own grow with systems I designed and fabricated so I have a pretty good grasp on the technology.

Dee

RDWC Undercurrent system
https://www.thcfarmer.com/community...formance-under-current-for-300-or-less.94487/
20180309 194532


Top Feed RDWC
Seedlings 4

Top feed drippers
20180304 214809


Nutrient Film Technology (growing strawberries):
20180529 163642 1
 
Last edited:
DGP

DGP

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263
This is the kind of root mass you can get even with only 3 weeks of veg so outdoors where you veg for 2 months or more would need to accommodate a monster root mass:
20180317 181734
20180317 181724
 
DGP

DGP

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263
Holy shit! Now thats a root ball lol
That's a typical root ball for my hydro grow but I have seen better growers like @heisenbubble get even denser root balls to the point they have to be pruned. I would say I am an average medical grower but that is what hydro can do if you keep the water quality high and nute values consistent.

This idea of growing hydro outside is kind of "out there" but really maybe the way to get hydro results outdoors is to do a quality coco run with automated watering (cause on a hot Summer day they plants would need a lot of water). However I have plants outside right now in organic soil and fabric pots that are exceeding 6 feet tall and 4-5 feet across that still have til the end of July to finish vegging. They ought to about double in height in the flower stretch. I am expecting 12-14' plants in flower (gonna be kind of hard to hide them in my yard). So, I dunno if the idea of hydro outdoors would ever be worth the challenge....interesting idea though.

Dee
 
S

Shawnery

1,499
163
If were showing off roots we need to see Heisen up in here. I have to admit, no matter how much it hurts me, his roots look like the bomb cellophane noodles.
 
C

CannaMorocco

27
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Hi everyone , i also need to learn about growing hydroponics outdoor , i'm from morocco and i heard that growing hydroponic you will have big yields, is it true ?
Here we grow a lot of cannabis plants , but we grow it on soil , so will be good to change to hydro or should we just stick on soil ?
Here are some examples ...
 
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15320244467685303834463901980475
DGP

DGP

1,214
263
If were showing off roots we need to see Heisen up in here. I have to admit, no matter how much it hurts me, his roots look like the bomb cellophane noodles.

Yep, Thats kinda what I said. I think growing is an art and nothing beats practice.
 
DGP

DGP

1,214
263
Hi everyone , i also need to learn about growing hydroponics outdoor , i'm from morocco and i heard that growing hydroponic you will have big yields, is it true ?
Here we grow a lot of cannabis plants , but we grow it on soil , so will be good to change to hydro or should we just stick on soil ?
Here are some examples ...
Morocco rocks. The one place on this planet I have wanted to visit over any other place. Interesting culture and fascinating place.

Also, I have to say some of the best cannabis and hash come from your home country.

I think large scale hydro would be hard to do outside and any grow at that scale outdoors would be more practical in soil. It seems to me any hydro grow outside would be purely experimental. I dont know maybe someone has done it. Even a coco grow that size would require quite an investment in an irrigation system.

Dee
 
S

Shawnery

1,499
163
If you set the feed lines and the epi far enough below land it might work. The ground is surprisingly efficient at cooling.
 

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