after flushing my plant.......

im in the process of flushing my plant iv got just plain water in there and i think i finally saved the plant from dying. when should i go back to using nutes and should i go full strenght?

i dont think so start with 1/4 and work your way up thats what i would do anyway
hope it helps

how long should i leave it in plain water?

6-12hours then gradually up your strength.