Taking the “P” Out of Splash-Back

1. Taking the “P” Out of Splash-Back Re-Inventing Public Sanitation Solutions Sam Rabb, Jim McLaughlin ENGN1000- Brown University Proposal Presentation February 17, 2011

2. The Problem • Existing surfaces of male restroom fixtures do not achieve desired level of sanitation

3. Background: “Virtually No Splash” Solutions- Part 1 • Pros • Inexpensive • Cons • NOT effective • Not efficient

4. Background: “Virtually No Splash” Solutions- Part 2 • Pros • Simple and inexpensive • Cons • User reliant • Not very effective

5. Background: Waterless “Clean/Green” Solution • Pros • Green • Cons • Clean? • Expensive

6. Background: Anti-Splash Backguard • Pros • Inexpensive • Easily integrated • Cons • Hard to clean • Replaced often • Costs add up

7. Our Proposed Solution • A stand-alone urinal that eliminates splash-back via improved geometry and materials

8. Engineering Theory • Understand and model fluid impact and flow • Understand and utilize fluid interaction with various materials

9. Engineering Technology • Stators/Vanes • Materials

10. Engineering Design • Splash must be eliminated • Ergonomics must be maintained • Maintenance requirements/Water usage must be optimized over each iteration