If your looking into getting into Soft Washing houses and roofs, here is a great little system for you. Comes with the pump, hose, hose reel, gun, nozzles, AND the Dougeanator mixing system. No longer do you have to batch mix, you can now have the system blend your bleach soap and water for you at the desired mix percentage you need for the surface you are cleaning. More information and ordering can be done here https://www.dougruckerstore.com/products/gunslinger-soft-wash-system/