aeroponics - spray time differences for veg vs flower

Hi, quick question about spray time differences between veg vs. flower. I feel like I should already know this by now but I want clarification before I jump into 12/12. My plants/roots are looking healthy and loving life with my current spray times in veg phase, but as the root mass expands in the flowering phase would you generally increase the interval between spray times in order to avoid soaking the root mass? It seems that thicker/dense roots will hold more water for longer and potentially rot with the same spray times as veg roots. On the other hand is seems like more roots could also require more spray..? I've had issues arise several weeks into flower with prior grows (roots starting to brown and die) and would really like to avoid them this time!.. thanks in advance for any insight.

I can't answer with experience, I'm just starting too. But the Scientific Method would suggest you don't change it at all. React to what happens because changing and being wrong will be further off than leaving it the same.

I'd leave it until someone with aero experience chimes in.

I just remember reading a post where someone stated something like "If ppl think they can just keep the same spray settings for veg and flower there going to regret it".. but didn't offer any explanation lol

I run 24/7 in both

Generally, you`d decrease the pause time and if thats not enough increase the pulse a little. The misting cycle should be geared to the plants not the growing phase, the same could be said for day and night misting cycles. If they`re happy and heathy, trust your judgement and just keep doing what your doing.

I guess the next question should be low pressure or high pressure?

I ran Lp at 1 min on /4 min off straight thru, worked fine. I'm trying 80sec on/ 8 min off, straight thru. Someone on here claims to get best results wth that timing. I can see longer dry times being helpful to fine root hair formation. I think I'm seeing more, but can't quantify it.

I've wanted to monitor the roots and change times accordingly, but it's more than I want to do right now. Ideally, I'd think you want sprayers to come on based off root zone moisture, if they could go 90 mins, stay moist, the plants don't show any sign of wilt and they still have access to the nutes they need, why wouldn't you? It's a balancing act, you need to figure out your setup.

I've wondered if a slightly thicker nutrient solution in LP, I couldn't see it working in HP, could facilitate this, something that would create more of a thick film of nutes on the root mass that would last longer than just water. Mainly for water conservation, but it could have other benefits, possibly. Just random thoughts.

You could probably get away with 15-30 minutes off with LPA. A typical lp nozzle running 80 sec on and 8 minutes off could be delivering as much as 3 gallons to the roots every hour.

Atomizer said:

You could probably get away with 15-30 minutes off with LPA. A typical lp nozzle running 80 sec on and 8 minutes off could be delivering as much as 3 gallons to the roots every hour.

Click to expand...

I had to do the math. . Using 400gph pumps=6.66gpm. 80sec on /8 min off cycles = 6.3 cycles per hour, 6.3cyclesx80sec per cycle=504sec, or 8.4 mins. 8.4minsx 6.66gpm=55.9 gph.
That's not taking into account system losses, so probably still around 40-50gph to the roots..lol...make it rain!

You said per nozzle, so I run 14 nozzles. 55/14=3.9 gph per nozzle...very good

If you run 14 low pressure nozzles in one chamber, you might as well flood it periodically using the pump and forget the nozzles altogether