## IMPORTANT NOTE: ## When you use this page as a template for creating your project page: ## * please remove all lines starting with two hashes (##) ## * except the acl line, please keep that, but remove one hash, so it reads #acl ... ## * fix the acl line so it has the correct page instead of the sample Project/...Group ##acl Project/AdminGroup:admin,read,write,delete,revert Project/ReadWriteGroup:read,write Project/ReadGroup:read ##master-page:Unknown-Page ##master-date:Unknown-Date #format wiki #language en {{attachment:GreyWaterPoster2.jpg|GreywaterPoster2|width="800"}} (Energy Hub poster, Dec. 2013) {{attachment:GreyWaterEHub.jpg|GreyWaterEHub|width="800"}} == The Issue == Valuable clean drinking water is literally being flushed down the toilet every time you use the bathroom, wasting water and money. == Overall Goal == The goal of this project will be to construct a toilet that gets all of its water supply by recycling used water from the shower and sink. == Timeline == 9/30 – Compile Resources, Discuss Design Challenges 10/7 – Develop Design10/14 – Develop Design 10/21 – Finalize Design and Materials Needed 10/28 – Inventory Materials, Begin Fabrication 11/4 - Continue Fabrication (Water Collection / Filtration) 11/11 - Continue Fabrication (Pumping Collected Water) 11/18 - Continue Fabrication (Integration into Toilet) 11/25 - Continue Fabrication, Work on Presentation 12/2 – Complete Fabrication, Finalize Presentation 12/9 – Demonstrate Prototype == Milestones· == Finalize Design and Order Materials, October 21^st^ '''DONE''' Complete Fabrication, December 2^nd^ Demonstrate Prototype, December 9^th^ == Resources Needed == A generous grant from the Wisconsin Energy Institute will provide funding for our project. The Physics Garage will provide the space and equipment needed to develop our project. == Summary of Sources == ==== How Toilets Work: ==== Below is some general information on how toilets work. This will be helpful in making sure our new design still has the proper functionality. http://home.howstuffworks.com/toilet4.htm http://friedmanplumbing.com/services/toilets/how-a-toilet-works/ ==== Pumps: ==== These sources will be helpful in determining how to get the collected water into the toilet to be reused. We are unsure whether we are going to be using electric or manual pumps. Electric pumps will need to have a power supply but would make the system easier for the consumer to use. Manual pumps will be cheaper and “greener” but will require the user to put in some work. http://www.northerntool.com/shop/tools/category_water-pumps+12-volt-pumps http://www.grainger.com/Grainger/ecatalog/N-1z0dtm1 ==== Filtration: ==== There are five main type of sediment filters that are most useful: • Spin-down filter strainers & wye strainers • Centrifugal separators • Cartridge filter systems • Backwashing media filters • Ultra-Filtra on (UF) membrane systems Read more: http://www.cleanwaterstore.com/technical/how-to-remove-sediment-from-well-water.php '''Spin Down Filter Strainers with Mesh Screens''' Spin down filters use screens of varying sizes to remove large sediment and grit from water. A typical practical size for home water wells is either 60 (250 microns) or 100 (150 microns) mesh. '''Wye Strainers''' A wye strainer has an internal screen with a large 20 mesh screen. It is used to keep large sand or foreign objects out of piping systems. A hose bib or valve can be installed on the screen "Y" section to allow flushing of the strainer. Read more: http://www.cleanwaterstore.com/technical/how-to-remove-sediment-from-well-water.php#ixzz2gOBc8nFb '''Centrifugal Separators''' In a centrifugal sand separator the water rushes through the device and centrifugal force slings large particles, sand, debris and sludge outward to the separator wall and downward in a spiral motion. Gravitational force pulls the separated solid particles downward past the spin trap plate into the solids holding chamber. Cleaned water then rises through the vortex locator and returns back to the plumbing system. These systems have no screens, slotted baffles, moving parts or filter media so there is no pressure loss. No maintenance is required; however periodic opening of the purge valve is necessary to flush out accumulated solids. Purging can be done manually or an automatic flush valve can be used. How It Works: Submersible pump in well is controlled by pressure switch. When well pump runs water flows through centrifugal separator and solids are separated out. Read more: http://www.cleanwaterstore.com/technical/how-to-remove-sediment-from-well-water.php#ixzz2gOAcw7km ==== Sediment Backwash Filters ==== • Removes sediment and turbidity with no filter cartridges or maintenance • Natural zeolite mineral filters water to 5 micron range • Auto backwash & rinse keeps media clean • Little or no pressure drop through filter • Rugged media lasts for years • Lighter than sand but filters finer • Lower backwash flow rate requirements than traditional sand filters Read more:http://www.cleanwaterstore.com/technical/how-to-remove-sediment-from-well-water.php#ixzz2gOC1yA7c == What has been done before? == These ideas have been done before, but we can make it better. http://www.permaculture.co.uk/videos/diy-rainwater-fed-toilet-made-easy http://www.thehousingguru.com/frugal/rainwater-flush.aspx http://www.sloanaqus.com/ == Group Members == * Dan Rothe * Ethan Blakley * Michael Vaubel * Grant Cleveland == Project Update (11/15/13) == The project is coming along nicely. This week we will be putting our shelf together and connecting the water collection and storage bins to the filter, pump and toilet. We will also continue to develop our arduino code to be able to control the pump based on how much water is in the toilet.