the more water volume, the more stable the pH will be. and less res changes.
Precisely.
true true i let my dwc run for 2 weeks sometimes with zero ill effects and still good growth do that with coco they would be dead
With flood and drain I run my reservoir with only top offs / add backs for the whole flowering cycle without any issues. Major savings on nutes and filtered water.
This is what I have been doing with no ill effects noticed. 55 gal tank with ~30-40 gallons of solution at a time. I just let em drink it down and add back 5-10 gallons depending on what the ppm looks like.
My flood and drain res is auto topped off by the RO filter via a float valve and solenoid valve on a timer. This tops it off once a day when the lights are off and all the water is guaranteed to be back in the reservoir from the tray. All I have to do is give the pH and PPM a weekly check. After the first 2 - 3 days the pH rarely needs to be touched with the RO. If the PPM is a little low I just calculate what nutrient add back is required. Generally in flower my add backs are mostly just the GH Bloom.
Thank you very much... It makes sense now that I understand the concept.
You can run a whole flower cycle with just topping off your Reservoir and replacing Nutes as needed?
Absolutely. I did it on a large scale for a very long time in multiple grows. I had 300 gallons for each pair of 4x8 trays. I was running lucas formula back then and for each 1kW light I was adding 15 mL of micro and 30 mL of bloom daily to maintain the 1000 PPM target. If I missed a several days of add backs it wasn't a big deal at all as it was a very small PPM drop. I usually just serviced them once a week with a 100/200 add back.
You have the right people helping you here. I'm not running hydro now, but I listen close to everything both these guys say.
my last grow i did top off thru out whole veg and flower lol
i no what u mean this run i really wanted to see the diff so far none
from a dump every week to not they still lokk happy as sorry i dumped at week 4 in veg last run and did a full cycle in flower tho of top offmy last grow i did top off thru out whole veg and flower lol