1. Final Results and Hopes for the Future
Sunn TST
Final Results and Hopes for the Future

2. Design Specifications
Water and Power Restrictions
Regional Constraints
Cultural Restrictions
Material Restrictions
Technical Constraints
Sanitary Constraints

3. What our Design Intended to Address
Provide a modification of current methods
Put waste out of human contact
Neutralize the fecal waste for safety

4. Design Components Gas Exhaust Scent control
Prevent dissolution of gasses to kill bacteria
Concrete Toilet Seat and Bowl
Stable
Water Resistant
Longevity
Fluid Outflow
Pressure from the fluid within the tank will passively leach into the surrounding soil.
Tank
Contain waste without overflow, this is buried underground
Design Components

5. Product Components Gas Exhaust
Carbon filtration handled the scent issues, however there were concerns of replacement options.
Concrete Toilet Seat and Bowl
Concrete molding process needs refinement, coating proved to be a viable solution to keeping the material clean.
Fluid Outflow
Design was changed to address Pascal’s Law. Potential for another bend to prevent gravitational clogs.
Tank
Material strength handled the necessary mass of fluid expected.
Product Components

6. Previous Test Results Confirmation that
Waterproofing concrete is possible
The tank will not fill over half full given any intake of fluid volume
It is possible to induce bacterial metabolization underground

7. Testing Stage 2 Goals: Create a version of product above ground
Mold our seat in actual size and coat it
Test the wear resistance of the coating
Determine that the waste will be processed before release into the environment

8. Frame build

9. Concrete Molding Issues
Concrete Particle size must be small
Needs higher moisture content during cure
Silicon or Plasticine mold to create smooth surface
Crumbling results in premature wear on coating

10. Waste Processing Within Tank

11. Issues Raised
This solution seems very simple, does that inherently mean it has an invisible flaw?
Why is this better than just a septic tank? What sets this apart from an average septic tank?
Is this truly viable?
Robin

12. Thank you for staying with us
Your contributions and support are greatly appreciated
If there are any questions, we would love to address them now.
Robin