I was assuming you were d2w... is this correct?
I run both recirc & some d2w. The d2w never gets a flush. I run a good 35% run-off at each application. I can get away with feed one day w run off, then top-up next day with h2o & no run-off, repeat feed, and so on. The plants grow slower, some hungrier strains manifest def. Daily with 25-35% run-off = fast growth, no build-up, no flush.
BTW, clearex & the like is a big waste of money. Sugar water. If want to "flush" in coir, a 250-300 solution works great, or just plain water. HINT: every time you flush in coir (water only- no nutes), you are essentially throwing your cation balance off within the coir itself. It takes the coir a good day or two to restore it's chemical balance, depending. Just a thought.
Recirc is a bit differenct, but essentially no flush as well- manage my rez & run-offs & top-ups carefully.
I never have any white salt build-up anywhere. Never have spiking ppm's. Imo, it is th enature of the coir + bene's + my nute regiment/program that allow for this, but it is certainly the case. You can likely ditch that step & be fine. Watching the r-off is key though, as with most any grow. Best.
|