No its not. We've had this discussion already.You don't drown anything by flushing. Flushing is commonly done in soil... it isn't just a coco thing. We had just got done talking on this thread about flushing that old soil of any built up salts and went through all of that discussion, and now you are second guessing what we advised to do after it was done. Too many cooks can spoil the broth as they say... Let's see how this first basic attempt at fixing this grow goes, and then if that doesn't work, we can throw worm poop and kelp and other good stuff at it, and see what sticks.
Yes you do drown your soil and along with it all the microbes. Its a shame you cant wash away the nutrients that are tied to soil particles via chemistry and physics in a process known as Cation Exchange Capacity.
It's the science... Salts built up... how does that even happen and show me the science behind that and how running water thru the soil somehow miraculously washes them out.
It doesn't happen.
There's no miracles just science. The science is Cation Exchange Capacity.
If you don't believe me here's the science and a quick google will give you TONS of information.
The nutrients are ATTACHED to the soil particles via chemical bonds. Water has no charge so how does water remove a cation (nutrients) that are bonded to soil particles?
It doens't it wont it cant and it isnt. Just the facts...
Here's the science:
Primer on CEC:
AY-238
Here's your science from our local university that has a soil lab.
Now show me some science on flushing .... I'll wait.
Edit: not trying to be a douche here I'm just disagreeing with flushing.
Here's some food for thought.
IF it was a thing how come my local farmers dont go out and spread fertilizer after every rain storm?