Sort of but not exactly. You want to basically water on your normal schedule but using water only and more of it(alot more of it) to flush out those built up nutrients from your soil or hydro resevoir.ok i just over water it? a week or 2 b4 harvest
I concur. I dont flush and you really dont need to unless you have done something wrong. I personally give those nutrients right up to the end but alot of other growers disagree with this method.Don't flush before harvest, you don't need to. Just stop nutes 2 weeks pre-harvest.
People flush to clear their soil of nutes, salts, pH imbalance, etc. Its a rinse.
Its not "overwatering" per se, just running alot of water through the soil at once. then let er drain out and continue doing your thing.