Help !!!

between the period of vegetation and blooming period I must wet the plants with plain water for 2 weeks ?? I USEd IGUANA GROW AND NOW IN THE FLOWERIN PERIOD IGUANA BLOOM.

Not sure where you got that information, but a flush between veg and flower is not necessary. You're plants will be just fine, give them food that is what they want and need right now, they will be especially hungry as they transition to bloom and become more so as the flowers develop. Flushing with plain water is for the last 1-2 weeks of flowering.