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I need a distillation system for solvent recovery (ethanol and possibly hexane) and for distillation of alcohol for QWET. Being a non chemist I'm not sure what to buy. My guess is that a fractional condensor would give better quality but also need longer time and consume more energy to process...

I can't find calcium in the data sheet but Yara sells Ca as a separate product. Thanks!

I would appreciate that, please post your feeding schedule.

Kristalon series from Yara is very cheap so I asked the retailer if I can use it in my hydro grow. They told me it was perfect for hydro so I'm surprised to hear that. I did however told them that i grow tomatoes. :) What kind of problems can I expect if I use the product in hydro...

I did'nt know that. Perhaps that's why the professional controllers are so expensive?

I spend hours everyday dreaming of large scale grow ops. It's addictive. :) 1000 litres IBCs is a part of that dream. I wish I had balls of steel... :)

I found various Arduino hydroponic projects on Youtube. I think Arduino is interesting because it makes it possible to control a lots of parameters, or just collect data at a low cost. But I must admit that I wouldn't trust my grow op with a device I built myself. Perhaps as extra safety like...

Thanks Craig1969SS for solving the mystery. That sounds like a logical explanation. Nice looking plant you've got there! Whats the name of the strain? :)

Here is a pic. Lights off and autocorrected. It's a vertical grow. Hydro, drippers and cocco. I use GHE with the Lucas formula. Added extra cal mag from start nothing else. The only thing I changed from last grow is that I added the fans. The dying leaves has been occuring during the last weeks...

Perhaps the automatic ph controller is best used for growers who can't visit the grow every day. But if the controller doesn't give me a better yield I don't think it's the right time to buy one. Thanks for your input Clutch1024 and Craig1969SS.

Thank you Clutch1024 I had no idea of that. I thought Bluelab was top quality. Well, perhaps it is but if it can't handle strong ph+ or ph- I have no use for it. Bluelab is expensive in my country but I have found this: It's a peristaltic pump so the liquid is only in contact with the inside...

All the trichomes are white, only a few are amber. I guess 1 week from harvest. The dry leaves is not a major problem for this harvest.But I would like to improve my technique. Last grow I had to much moisture, this grow fans running 24/7 but random dying top foliage. The buds looks fine. Next...

That incident occurred during my last grow. I had only a small fan inside the tent and it was in the middle of the summer 27 degrees Celsius outdoor and very humid. Inside the tent the temperature was about 26 degrees Celsius (79 F). I discovered in one of the corners a large cluster of foliage...

Sorry, I forgot to mention that the mold issue was in my last grow. It was only in one single bud so i cut it off and installed the fans. That was during the summer when the RH was +60% This time I have no problems with mold. But instead of mold I have problems with dry leaves. Dehumidifier...

After a minor mold issue I installed 2 oscillating fans in my grow tent. It works fine but some of the top leaves dries during the last 3-4 weeks of flowering. The fans works on lowest speed 24/7. The RH inside the tent is 53-59% It looks like this harvest will be the highest yielding so far...

Some strains are more sensitive to PH. I have noticed that the growth often is increased a few days after I correct the PH. I estimate that I let the PH drift to far a few times during each grow and those days quickly adds up to a noticeable percent of the total grow cycle. Question is if an...

I would use a timer with a relay for that on/off cycle.

I had similar problems with my last grow. My guess was deficiency or PH problems. I added Cal-mag and monitored the PH and adjusted every second day. The only thing that helped a bit was the PH adjustment. Finally I figured out that it probably was wind burn and heat stress. In the next grow I...

I'm not sure if I understand you correct. Do I need two pumps, one fore the MKIII and another one for the vacc oven / chamber?

Tazz&indy, I didn't know about the rehydration of old Boveda packs. How can it be done?