timmur
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Commercial?
You'll find significant savings on labor (one of your highest costs) by going straight dwc. The 'sterilization' times are reduced to a quick scrub and rinse of the res. Infrastructure costs will be significantly less with DWC, simple tubs vs. what rdwc requires. Running airpumps, instead of large water pumps, is a large savings on electricity and start up costs.
DWC is truly the lazy man's hydro for smashing results. :)
Have you read "Ask lucas" before? The reason I ask is because you mentioned using an add-back reservoir for 'stable pH.' In my experience, a full and cyclic pH swing grows vastly cleaner and higher quality cannabis. The old overgrow FAQ (and a lot of misinformed people) talk about using an add-back reservoir for pH stability, when in reality you want a full and healthy swing to be present. I remember a quote from Lucas where he strongly advises to use only plain R/O water for add-backs and is wondering where the "pH stable" junk came from.
Keep up the good work!
Douglas
How many total plant sites would you be comfortable running without hiring a crew? (assuming you'll contract out the trimming or else helpers with machines) And how many per room do you think is the sweet spot for practicality?
Show us? I'd like to see one of these larger RDWC operations, sounds intriguing.
That's actually quite simple.The biggest issue I see with running a series of DWC totes is water chilling. I run a 1/10 hp chiller on each system. Trying to cool 16 individual totes would be hard to manage. How are dealing with this?
Yep, super trichome dense cannabis is expensive to grow in some areas of the country. I used to grow in hot desert climates, now I live where it's cold and dry. I can run active air for nearly 8 months of the year, sometimes more.I run light on at 78, so that wouldn't work for me. My water temps are right around 68. Keeping my room at 72 when the lights are on would add significantly to my A/C costs and eventually exceed the added cost of a turn key RDWC vs a DIY DWC system. Since I'm running a combined veg/flower environment I strive to keep my rH at 50%. (Air is pulled from my bloom room, through my veg room, back into the bloom room.) Going lower would require a lot more dehumidification than I currently have, again adding to both the startup and operating costs.
Stagnant? Anyone running stagnant DWC deserves the poor results they get."Secrets to Trichome Dense Cannabis" By Douglas Curtis
Running with no chiller, standardized water chemistry in stagnant DWC seems reasonable for getting things done if this is your only option. Advising others to do the same as an optimum approach seems misguided.
Do it better and get better results.
Good point. Do you have any experience with Jacks formula's for hydro? I have been considering giving them a go and would appreciate any input you may have if you have used it. Or I can run a search and see if there are any Jacks threads. peaceI've found all strains (so far, in 15+ years) to handle a full 7-10 day pH swing of 5.4-5.8 perfectly well. Not a single variation. I've also used lucas and then a modified lucas formula (and res management methods) throughout all those years.
So perhaps more 'balanced mix' dependent?
Good point. Do you have any experience with Jacks formula's for hydro? I have been considering giving them a go and would appreciate any input you may have if you have used it. Or I can run a search and see if there are any Jacks threads. peace
Ya know with a rootball and good color that I am seeing there may have me doing a back peddle and apologizing to you when we dickered over rez temps a wile back. What is your rootzone temp without a chiller? Damn if you can get healthy growth like that with what your doing with your system at higher temps than what we are all told I could save some $$$ not stressing so much to keep shit perfect!!! so you say all you do is use hydroguard and again what are your highest rez temps in summer months? PeaceView attachment 622562 Chillers are a lil over rated imo Not saying they don't improve results but with tons of water/air flow and hydroguard you'll have crazy healthy big ass roots and plants to match.
Nice, good lookn out. Will chase that down.Cap has an old grow log on here where he runs jacks in a rdwc I beleive.
Lol thanks brother. And that was after sitting a day or two after the chop. They darkened up a lil bit. But thanks again bro. I try to only speak from experience.Ya know with a rootball and good color that I am seeing there may have me doing a back peddle and apologizing to you when we dickered over rez temps a wile back. What is your rootzone temp without a chiller? Damn if you can get healthy growth like that with what your doing with your system at higher temps than what we are all told I could save some $$$ not stressing so much to keep shit perfect!!! so you say all you do is use hydroguard and again what are your highest rez temps in summer months? Peace
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