Originally Posted by Riviera123
Yup i grew in same janitor 3 gallon bucket . I use the same metal shelve system too but much smaller.
I dont want to start a big argument about hempy bucket watering like was done earlier on this thread . So if the plant is well established and the roots are more mature Do you let your hempy run a little dry on top before you water again ? I guess after reading up on the auto pot system i am sort of curious how it appears to dry up on top before valve opens to let more water in to bottom feed the plant.
I don't recommend letting coco dry out ever. It may lead to EC spikes and pH fluctuations which often causes people to chase phantom nutrient deficiencies by adding calmag and and/or a plethora of other additives.
The idea of letting coco dry out comes from soil practices. Soil typically does not hold a ton of oxygen in comparison to coco when fully saturated so soil growers play a wet/dry cycle to get more oxygen to the roots. Coco users don't have to worry about that as coco holds plenty of oxygen at full saturation.
Now as far as autopots go it's slightly different. This is because the nutrient feed is coming from the bottom instead of the top. As a result of the system the coco never really drys out and if there is a small top layer of dry coco it acts as more of a mulch than part of the root zone medium. Bottom feed is a pretty cool concept and if done right seems to be very conservative on nutrients. The only downfall of bottom feed is the higher potential for nutrient build up if one doesn't have that part of the grow dialed in, but otherwise they are awesome.