Source Water Protection – Water supplies from two different sources , used as backup !
Dual water distribution – If one of the sources of water does not work, then, automatically this system delivers water from the second source.
Primary water source must have necessarily a higher pressure than the secondary. The system works automatically and is based on pressure difference between two sources of water. The complex pipes system from pictures, use the water route with manual bypass to other consumers in secondary supply system who do not require primary source of water supply, considered potable. Electric equipment in the photos is a pressure switch, which operates an electric pump in the secondary circuit. Water source is a fountain.
Bypass valve is operated manually if the secondary source is not available, and water from primary circuit, will supply water consumers in secondary circuit. (manual valve can be replaced with an automatic valve, electrically operated.) Placement scheme for accumulation tank, in the secondary source, is missing from the photos. This system is made of pp-r pipes and fittings , uses two Brass Spring Check Valve, Pressure Gauge , Brass 5 Way Fittings, Brass Ball Valve, and Pressure Switch.
The main picture was taken with a FUJIFILM brand camera, model FinePix S5700 S700 on Thursday 24th June 2010 by the Robert & Mihaela Vicol photographers.
As basic settings, an exposure time of 10/450 (22.222ms ) was used with aperture f/3.5 and the ISO Speed of the camera was 400. Actual focal length of the lens was 630/100 (6.3mm) with unknown lens model (range).
The actual file size is 2.9 MBytes, resolution is 2304px on the horizontal and 3072px on the vertically and the original (or modified) file name is Dual-water-supply_142965.jpg (media type is image/jpeg).
The photo original orientation was portret with an X Resolution DPI equal to 72/1 and Y-Resolution DPI equal to 72/1.
Other camera settings (and APEX value) were the lens aperture 360/100, status of flash equal with 9, shutter speed 550/100 and brightness value 210/100 (6.3).
Note: It looks like the current size of the image was changed by rotating the image to another position but the original orientation of the photo remained the same.