Rainwater Recycle System

This system captures, stores, and filters rainwater for reuse in flushing the Ryan Resilience Lab’s toilets. This helps to keep polluted rainwater out of the river and also reduces our use of drinking water for transporting waste.

Scale & Design

This specific system is more practical for larger scale buildings, but can be replicated at smaller scale with a rain barrel.

Installer

Davken Mechanical

Estimated Costs

$50,000-100,000

Suppliers

Cisterns: Bushman 5000 Gallon Round Rainwater Harvesting Tank (Short) ~$5,000 each

Submersible pump: Goulds Water Technology 45GS15-M15430 $1,580

Vortex filter: RMS WISY WFF 100 $660

Wire mesh filter needs to be cleaned every three months. Can be cleaned in dishwasher

Bag filter housing unit: Shelco MicroGuardian Model BFS-2SB-2-304-2B $2,052

Bag filter: MicroSentry HTF Series 5 micron bag filter ~$5.50 each

Size: #2: 7”Diameter 32” length
5 microns
Change every 3-4 months
Materials: polypropylene, nylon, polyesterene, stainless steel

UV light: Rainier Luminor Ultraviolet disinfection system

Dye injection pump: WALCHEM EWN-B11VCURA $786

Blue dye: Healthy Ponds All-Natural Blue Pond Dye $22

Solution tank for dye: Walchem Model 944-2C $665

Filtration system controller: Rainwater Management Solutions RMS-150

Other Examples

Lady Fern Native Plants uses the same style of cisterns to capture rainwater from her roof and water her plants. Princess Anne Middle School uses the same system (Rainwater Management Solutions) for flushing their toilets.