G
Greengrower8
- 102
- 28
Recently in this grow I began measuring ppm’s in my dwc buckets, which is something I haven’t done before. I understand the basics of it and, when starting with new, clean (RO) water, adding nutrients to a desired ppm level is easily achieved. However, how are such weekly adjustments made to the reservoirs if they aren’t flushed with new water? I realize it’s recommended to change the water weekly in a dwc setup such as mine, but honestly, I think that’s overkill, especially when you don’t see any major pH spikes or drops or other visual problematic cues. It’s also a huge pain in the ass when you have 30 buckets. I do think the water should be changed eventually, although I’ve still had success without changing the water more than once throughout flower.
Anyway, my lights went 12/12 about 2 weeks ago and the reservoirs are due for a nutrient increase. They are running about 1100 ppm consistently since their last feeding. A few of them are a bit larger, drank more and had to be topped off a few times so they are at around 850 ppm. I only use GH trio and Hydrogaurd. The last feeding to continue transition from veg to flower (with clean RO water) at 1100 ppm was achieved by adding 35/35/35ml of GH trio and 7.5ml of hydrogaurd per bucket.
How am I supposed to make these buckets 1300 ppm from the levels they’re at?
In the past, totally ignoring ppm’s, I would just add the nutrients according to my chart - at this point, early bloom calls for 7.5/2.5/10ml of GH micro/gro/bloom per gallon. I always go half strength, so, in past grows, I would just add 15/5/20ml of GH trio per bucket. Obviously, this is considerably different when you add according to certain ppm levels. Like I said, I had to add 35ml of all 3 per bucket to get to 1100 ppm. So, using clean water, adding 15/5/20ml per bucket is gonna be no where near 1300 ppm. And it’s even more confusing if I’m trying to go from 850 or 1100 to 1300 ppm. And simply adding 200ppm or whatever to the existing reservoirs seems like spitting in the ocean.
Please help!!
Thanks!
Anyway, my lights went 12/12 about 2 weeks ago and the reservoirs are due for a nutrient increase. They are running about 1100 ppm consistently since their last feeding. A few of them are a bit larger, drank more and had to be topped off a few times so they are at around 850 ppm. I only use GH trio and Hydrogaurd. The last feeding to continue transition from veg to flower (with clean RO water) at 1100 ppm was achieved by adding 35/35/35ml of GH trio and 7.5ml of hydrogaurd per bucket.
How am I supposed to make these buckets 1300 ppm from the levels they’re at?
In the past, totally ignoring ppm’s, I would just add the nutrients according to my chart - at this point, early bloom calls for 7.5/2.5/10ml of GH micro/gro/bloom per gallon. I always go half strength, so, in past grows, I would just add 15/5/20ml of GH trio per bucket. Obviously, this is considerably different when you add according to certain ppm levels. Like I said, I had to add 35ml of all 3 per bucket to get to 1100 ppm. So, using clean water, adding 15/5/20ml per bucket is gonna be no where near 1300 ppm. And it’s even more confusing if I’m trying to go from 850 or 1100 to 1300 ppm. And simply adding 200ppm or whatever to the existing reservoirs seems like spitting in the ocean.
Please help!!
Thanks!