The prime location for charging water - in an open bowl, rather than in a bottle or other covered container - is to place the bowl just under the apex. There's more energy force and less time required if you place the experiment up high in the pyramid, instead of sitting the bowl of water on the floor. There is a mistaken notion that the larger the pyramid, the greater the force. This is not true. It's all about location, rather than size. If the full or new moon and sunspot cycles are at their maximum, then the force will be substantially greater, and the time for charging will be less. If you make your test just under the apex during the same period, it should only take from a few days to ten days, depending on the water quantity being charged. A few gallons should fit this scale.