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Cistern

-2,600-gallon cistern flushes two 1.6 GPF toilets

-988 avg. users per day, 344 avg. flushes per day

Water Quality

Left: Pre-Cistern Debris Screening: WISY Vortex Filter (280 microns)

Right: Post-Cistern Sediment Filtration

Water Quality-E. Coli

E. Coli Presence in Water Supply

Water Quality-Total Coliforms

Presence of Coliform Bacteria in Water Supply

Water Quality-Turbidity

Presence of Suspended Solids in Water Supply

Total Water Savings

21,976 gal (Nov-Mar 2016)
-4,395 gal/month avg.
-11% of annual water use for toilet flushing provided by rainwater
-Rainwater supplied 27% of demand for flushing during rainy reason
-Savings: $199.78/yr

Potential Water Savings

-Current tank has capacity of 2,800 gal. It is recommended to upgrade to 10,000 gal tank, so that the water supply will extend for 18 days between storms

System Cost Summary