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Large oak tree in picture constantly drops leaf litter onto roof.
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Rainwater collection is from a 700 sq. ft. roof surface.
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Rhino gutter guards were installed to keep Oak tree debris and gravel out of the cistern. Rhino gutter guards are 440 mesh, or 35 microns
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Carbon filter was installed to eliminate potential odor and color in the water from oak leaf tannins.
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When rainwater supply is low, the homeowner manually switches the toilet supply line from the rainwater angle stop to the municipal water angle stop. The reduced pressure zone backflow unit is installed just after the meter to protect the public water supply from potential cross contamination.
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E. coli is a subgroup of the fecal coliform group. Most E. coli bacteria are harmless and exist in the
intestines of people and warm-blooded animals. However, some strains can cause illness. The
presence of E. coli in a drinking water sample usually indicates recent fecal contamination. That
means there is a greater risk that pathogens are present.
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Total coliform bacteria are common in the environment (soil or vegetation) and are generally harmless.
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Turbidity is a measure of water clarity how much the material suspended in water decreases the passage of light through the water. Suspended materials include soil particles (clay, silt, and sand), algae, plankton, microbes, and other substances. These materials are typically in the size range of 0.004 mm (clay) to 1.0 mm (sand). NTU =NTU = Nephelometric Turbidity Units
Turbidity can affect the color of the water, as seen here in the color of the water in the toilet bowl. Fortunately, the homeowner doesn’t mind the yellow color.
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In 2016, Cal-American Water sold water for 0.06/gallon. At current water rates, the payback time on this system is 79 years.
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In 2016, Cal-American Water sold water for 0.06/gallon. At current water rates, the payback time on this system is 79 years.
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Sediment Filter and Carbon Filter
