I have a survival world with dispensers filled with buckets to fire on a lever which I have the circut shown in the attachment below. It activates on the rising and falling action of the lever and powers the dispensers. The circut works as intended. If I leave the game with the water in the dispenser, reloading the game(quitting to title and back) will activate the dispensers, letting the water flow out. I assume this is because the state of the Redstone torch does not save when the world is reloaded, but I could be wrong.