The multi-position control knob has “on,” “off,” and “water” only settings, which make for quick and easy cleanup. Made of high-impact, unbreakable plastic for a lifetime of reliable service. The free-spinning sprayer head connects easily to any hose so there’s no twisting and turning hose hassles. The fertilizer is automatically mixed with the proper amount of water for no muss, no fuss application. (The formulation below is specifically for this sprayer.) Our “Miracle Mix”5 Minutes to a lusher garden!Pour 3 scoops of Rose & Strawberry fertilizer into sprayer.Add 6 scoops of Liquid Seaweed. Fill with water to top line and stir.Add 1 scoop of T&T Wetting Agent, stir again, spray till empty. You have fertilized!