Wouldn’t say “commercial” but I’m dabbling on a larger scale (120 buckets - 6 systems). About half in DIY under current systems and rest in top fed RDWC.
Pros:
- A lot more fun to work on/with than soil/etc IMO
- Growth is insane so shorter cycles 2-3 wk veg
- Keeping things clean and bug free is a lot less of a headache
- More forgiving than you would think once you have grasp on it
- You actually use less water over a course of a grow even tho it might not feel that way
- Once built it doesn’t require as much day to day work and tear down/clean up/resupply way easier/quicker
Cons:
- Initial cost/time for setup
- During learning curve it can be very unforgiving...when things go wrong they seem to go wrong quickly
- Access to large amounts of water at one time (still less water in grand scheme but when doing multiple change outs in short period are tough if you don’t plan/store RO in down times)
- Power - On top of lights, you’ll be running quite a few more pumps/air pumps so more $$/limited to what you have access to
Not sure if this helps or what you’re looking for as these are kind of overview points but let me know if you want to go in depth on anything. By no means an expert but I’ve Fd up enough to pick up on some things and always learning so looking for feedback as well.
I haven’t seen it out there but I actually run top feeds in the UC as well. I didn’t see the harm in adding them, only benefits. Clogs were the main reason for going to UC so I almost think of UC as a backup. I’ve also changed my top feed supply...instead of long runs of small supply lines, I ran 1/2 black tube w/tees at each bucket and then just a short run up to top to dripped. This doesn’t erase clogs from problem list but makes much easier to identify/fix if it does happen. Also in line filters after supply pump if you don’t have already. I will say I do turn off top feed on UC a couple weeks in bc the roots are plenty large enough but I’m just testing that at this point...there might be positives to running full cycle.Probably more helpful than you know lol That's a comfort! I decided to go ahead with stick with RDWC and continue to scale-up. I've got the waterfall RDWC tuned in pretty well.
Do you like the UC over the top feed? I figure it would be way less hassle then worrying about a line clogging.
What size are you flowering in?