Piss — Spew Recycle [exclusive]

Result: , used for drinking, hygiene, and oxygen generation.

| Risk | Impact | Likelihood | Mitigation | |------|--------|------------|------------| | (discomfort with urine reuse) | Low adoption | Medium | Emphasise “water‑saving” and “fertilizer” benefits; optional “flush‑only” mode that hides the process. | | Regulatory variance (different jurisdictions have different reuse limits) | Compliance delays | Medium | Build a configurable output‑quality profile in firmware; provide region‑specific firmware builds. | | **Valve or sensor failure leading piss spew recycle

| Category | Requirement | |----------|-------------| | | MTBF > 2 years for moving parts; > 99 % uptime for treatment cycle. | | Scalability | System can be stacked (e.g., 3 × 10 L tanks) for high‑traffic facilities (schools, stadiums). | | Usability | < 5 seconds for user to understand status via icons; app onboarding < 2 minutes. | | Environmental | Energy ≤ 0.5 kWh per 10 L treated; < 0.2 L water loss per cycle (evaporation). | | Manufacturability | Use injection‑molded ABS/PP for housing; stainless‑steel or food‑grade polymer for fluid contact surfaces. | | Maintainability | Consumables (filters, UV LEDs, electrolytic plates) have 6‑month life; tool‑free cartridge swap. | | Security | Encrypted TLS communication between device and mobile app; OTA firmware updates signed with RSA‑2048. | Result: , used for drinking, hygiene, and oxygen generation

| Phase | Duration | Milestones | |-------|----------|------------| | | 0‑2 mo | Market research, user interviews, regulatory scoping. | | Proof‑of‑Concept Prototype | 2‑4 mo | Lab bench setup: flow sensor → valve → UV/E‑cell → water quality testing. | | Industrial Design & Enclosure | 4‑6 mo | CAD models, 3‑D printed housing, ergonomics testing. | | Alpha Unit (Hardware + Firmware) | 6‑8 mo | Integrated PCB, MCU firmware, mobile app MVP, basic data logging. | | Beta Field Trials | 8‑10 mo | Deploy 5‑10 units in homes/offices, collect performance & user feedback. | | Regulatory Certification | 9‑11 mo | Submit to local water‑reuse authorities, obtain UL/CE markings. | | Production‑Ready Design | 10‑12 mo | BOM finalisation, supplier qualification, tooling for injection molding. | | Launch Prep | 12 mo onward | Marketing assets, installation guides, training for service techs. | | | **Valve or sensor failure leading |