stores volume target levels programming instructions for determining information to be presented on the display and data such as the current volume and flow rate the cpu 64 processes the digital signals to determine the volume flow rate and volume that are respectively sent to the volume rate display 20 and the volume display 24 a charging device u2014 a battery solar cell or generator alternator u2014 provides power for the processing and display attached to the water pipe 14 is the adjustable handle 17 the adjustable handle 17 is connected to a flow valve 40 that rotates with the adjustable handle 17 the rotation of the flow valve 40 restricts the flow of water inside the water pipe 14 fig2 b depicts a side view of the housing 12 fig2 c depicts a bottom view and shows the housing 12 attached to the water pipe 14 via the tee 15 0031 fig3 depicts the preferred mechanical embodiment 100 of the invention in the mechanical embodiment a housing 110 includes an exterior mounted target volume dial 112 and a start flow button 114 a first end of the housing 110 is attached to a spigot 106 via a first coupler 108 the spigot 106 is attached to a building 120 as shown but can alternatively take other forms such as at the end of a hose or protruding from the ground a.