GrowWeedEasy.com
You're browsing as a guest. Sign up to join the conversation, share your grows, and get help from thousands of fellow growers — it's free and takes less than a minute.
Hydroponic Growers Group!
- Thread starter IslandColas
- Start date
FlyingDutchPaddy
New member
Hi Cab1080, i'll try to explain in a simple way.
ppm = part part million ; ec = electrical conductivity.
they both measure the amount of disolved particles in water.
the scale for EC as used in general is in miliSiemens. People will generally say that they measure an EC of x.y
the EC scale is also standardised, no variations.
ppm can be measured in different ways, depending on which salt it was calibrated against.
most ppm meter pens you can get as calibrated to table salt (NaCl). Roughly speaking 1.0 EC = 500 ppm.
the conversion factor for NaCl to EC is 0.5 to 1.
600 ppm (NaCL) = 1.2 EC or 1200 uS
how does this relate to us?
when we replace our res water completely we're adding our nutrients to the water for the res.
usually, water already has a number of disolved particles from the source we get it from.
that would be the baseline ppm / EC measurement i'd be interested in.
when adding our nutrients to the water, nutrients are disolved particles which change the amount of disolved particles in the water.
Usually, you will see the reading go up compared to plain water.
once all is added to reservoirs, it will all mix and settle to a ppm reading in time.
i think that is worth tracking over time.
especially if you see plants are very happy at some stage in the grow - measure the ppm & note down what you did to get there... that would be future target for the next grow.
ppm = part part million ; ec = electrical conductivity.
they both measure the amount of disolved particles in water.
the scale for EC as used in general is in miliSiemens. People will generally say that they measure an EC of x.y
the EC scale is also standardised, no variations.
ppm can be measured in different ways, depending on which salt it was calibrated against.
most ppm meter pens you can get as calibrated to table salt (NaCl). Roughly speaking 1.0 EC = 500 ppm.
the conversion factor for NaCl to EC is 0.5 to 1.
600 ppm (NaCL) = 1.2 EC or 1200 uS
how does this relate to us?
when we replace our res water completely we're adding our nutrients to the water for the res.
usually, water already has a number of disolved particles from the source we get it from.
that would be the baseline ppm / EC measurement i'd be interested in.
when adding our nutrients to the water, nutrients are disolved particles which change the amount of disolved particles in the water.
Usually, you will see the reading go up compared to plain water.
once all is added to reservoirs, it will all mix and settle to a ppm reading in time.
i think that is worth tracking over time.
especially if you see plants are very happy at some stage in the grow - measure the ppm & note down what you did to get there... that would be future target for the next grow.
alltatup
New member
I just started germinating yesterday for grow #8. I have two stealth DWC grow boxes: a BCNL Roommate and a smaller box. I love DWC, although the process of fine-tuning my grow room was an expensive one: I had to buy chillers for both boxes, which nipped the root rot problem in the bud, so to speak. I also invested in a 50 pint dehumidifier--quite necessary where I live. Finally, I invested in some solar panels, which have really helped with the electric bill, and the 45% refund from the govt. wasn't too shabby, either.
farmerjim
New member
Any pics of the setup? I was having root problems with the dwc also. I plan to snag a 1/10 chiller at some point but frozen 2Ls seem to be working for now. Were you going solar for your entire place or just the grow room? There was an article about a guy in MA that has a self-sustaining hydro tomato grow that I've been wanting to look into
alltatup
New member
farmerjim See pics below. With a little help from my friends, I drilled holes in the side of my grow box and fed the tubes to and from chiller into them. I had to cut the pump wires for the third hole and splice them back together. That's a 1/10 hp chiller, and it keeps an 8 gallon reservoir at a nice 68 degrees F.
Attachments
Juicyj89
New member
Lol idk just a worry wart I guess. But okay awesome. And yeah i always heard the cotyledons stored enough nutrients for seedling growth but that was soil too. So I'll give it a little and see how it does. Seemed a little slow but if y'all said it looks like yours then I must be good! Thanks again!
alltatup
New member
Campesino I added nutes to the seedling reservoir today, as well as Voodoo Juice,. They are small, but roots are emerging, and we are in the zone!!! :-}
farmerjim And that's right where my seedlings are, so I'm expecting them to respond well. I usually add nutes at a very low dose as soon as I see roots coming out of net pots.
farmerjim And that's right where my seedlings are, so I'm expecting them to respond well. I usually add nutes at a very low dose as soon as I see roots coming out of net pots.
DankwingDuck
New member
How did I miss this post before now . Just commenting so I get notifications 😜
Trichomefarmer88
New member
Soo... coolest clone I've grown.... I'll give short story first....
so I have been switching my whole garden to hydro.. love it.. but I have never flowered from seed or small clone so me always wanted to know everything.. I popped a week old from roots clone an threw in my flower tent.. after a few weeks I'd say about a month, I noticed almost no growth to it an seen she was flowing.. only like three inches high...lol I thought to myself hell no! 5 gal bucket with 3 inch bud growing on top, too much of a waste of space.. so Iremoved her from the flower tent at about 5 to 6 weeks inn... I put her back into veg closet figured let her grow a bit an flip back... well Maybe i should have waited to remove her cause not even three days later after she was back into veg the flower stretch started!! Lol she got a good foot an a half inn like a week... amazed as keeping my word to her that if or when she grew afoot I would put her back into flower.. sooo I did... but then when I put her back into flower......... she started reveging!! Lol crazy she guess I drove her as crazy as the rest of my ex's lol.... anyways she's like a month into flower again.. look how beautiful lol
So cool I think
so I have been switching my whole garden to hydro.. love it.. but I have never flowered from seed or small clone so me always wanted to know everything.. I popped a week old from roots clone an threw in my flower tent.. after a few weeks I'd say about a month, I noticed almost no growth to it an seen she was flowing.. only like three inches high...lol I thought to myself hell no! 5 gal bucket with 3 inch bud growing on top, too much of a waste of space.. so Iremoved her from the flower tent at about 5 to 6 weeks inn... I put her back into veg closet figured let her grow a bit an flip back... well Maybe i should have waited to remove her cause not even three days later after she was back into veg the flower stretch started!! Lol she got a good foot an a half inn like a week... amazed as keeping my word to her that if or when she grew afoot I would put her back into flower.. sooo I did... but then when I put her back into flower......... she started reveging!! Lol crazy she guess I drove her as crazy as the rest of my ex's lol.... anyways she's like a month into flower again.. look how beautiful lol
So cool I think
Attachments
Juicyj89
New member
Well for those who aren't subbed to my grow I figured I'd give an update of my girl. She's 15 days now. So a week difference since the last post where I was worried. I'd have to say, she's looking much much better. And like alltatup said NebulaHaze said, she's chugging right along. Choo chooooo!!! Hahaha
Attachments
Last edited:
I'm in! I've tried super soil and coco and, now, DWC. Overall, I like the thought of soil but, find DWC more enjoyable. Now that I've solved (I believe) my pH control issues (yeah, I'm "blessed" with control issues as previously mentioned), I'll try coco again but, probably stay away from soil. Not too interested in some of the advanced techniques (CO2), as I'm okay with the level of complexity (almost none) of my current setup and vision for a strong coco grow. I am compiling a pretty detailed grow journal for this grow and hope to post it once done (2 mos).
The help and advice I've received on GWE has been almost overwhelming. Clear to me there are many ways to get to the right result. So many options! This is beyond fun to me. And, I love me some flower!
The help and advice I've received on GWE has been almost overwhelming. Clear to me there are many ways to get to the right result. So many options! This is beyond fun to me. And, I love me some flower!
Juicyj89
New member
alltatup I'm pretty sure I did start a topic. Should be at the link.
https://forum.growweedeasy.com/forum...hps-hydro-grow
https://forum.growweedeasy.com/forum...hps-hydro-grow
Attachments
Last edited: