See my response in the Infirmary!
Uhmm you could wait 16 hours and get a little more sleep?
Oh man, I strongly discourage soil growers to do flushing, It makes the soil so far out of balance that by the time it recovers your plant has been long ago harvested. Soil is a living organism, you feed and water that organism and it in turn feeds your plant. Restarting (cooking) soil can take many weeks.