From what i've read and seen you need to flush it with just plain water. flush 3x your pot size(ex. 1 gallon pot = 3 gallons of plain water) hope this helps, or as meat hook said but dosent too manyy nutes cause the soil to build up salts? i could be wrong
Flush it out good with plain ph'd water. Give it like 3 times the normal amount and let it all run out. Test the run off and flush more if needed. The burnt leaves will fall off, not much you can do about that.
