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Table 1

Materials list, commode, compost processor, urine collection devices, and urine depot

CommodeDesign inspired by the Joseph Jenkins Loveable Loo™
Cabinet Sealed fir, pine, or other common woods capable of holding a 19 litres container; dimensions: 38 cm wide, 51 cm deep, 38 cm tall
If the cabinet is sealed, negative air pressure devices can be installed for source prevention of all odors 
Lid Plywood 
Toilet seat Standard, compression molded plastic; height from floor: 41 cm 
Container 19 litres with lid (excreta collection device) 
Cost Materials: about $20, labor $30 
Features, recommendations • Waterproof, sealed wood
• Easy to install, permanent, odor free
• No electricity, water, plumbing connections required
• Inexpensive 
Optional Negative pressure ventilation fan to prevent odors during use, vents to outside the living space 
Compost processor 
 Bins (nine count, three modules) • Dimensions
 ○ Exterior 7.3 × 5.9 metres
 ○ Bin interior dimensions 1.2 × 1.2 × 1.1 metres
 ○ Bin capacity: 1.66 cubic metres
• Walls
 ○ Durable, low-cost, 20 × 20 × 40 cm concrete blocks (insulation)
 ○ Vermin proof
 ○ Wooden sill plate for roof support (located on top of walls)
• Bottom
 ○ Sloped concrete pad
  ▪ 10 cm above-pad perimeter lip
 ○ Waterproof
 ○ Center drain grate (leachate collection)
• Roof assembly (sloped)
 ○ Corrugated, galvanized steel
 ○ Rain accumulation prevention
 ○ Vermin mitigation
 ○ Hinged
 ○ 3-bin module shares a common roof 
 Sump area (plumbing) • Leachate collection includes drain grate, sump enclosure, lid
• 5 cm internal diameter ABS piping and fittings with 2% slope
• Contamination prevention of local soil and groundwater 
 Ventilation • Wire mesh screen air vent (hardware cloth)
• Vermin and insect management
• 902 cm2 per bin 
 Security Gated courtyard (hinged and latched) 
 Cost Materials: $2400 
 Features, recommendations Nine (9) bin system accommodates 19 full-time adults 
Urine collection devices 
 Bottles • Available in many sizes and types
 ○ As virgin containers, purposed for urine
 ○ As recycled beverage containers
 ○ Portable, can fit in large pocket
 ○ Personal
 ○ Easily sanitized
 ○ Require ability to cap and seal tightly
 ○ Rinse 3 times with 5–10 ml water and empty into collection container to clean, reduce odors and struvite formation 
 Urethral extension device (optional) • Multiple models commercially available
• Personal hygiene device, cost about $12
• Portable, personal, easily sanitized
• Can also use a simple funnel 
Urine depot 
 Urination station Consists of a small shelter to house a combined excreta commode and wall-mounted dry urinal and surrounded by urine sequestration tanks. Used as a toilet by visitors and gardeners. 
 Features, recommendations IBC (Intermediate Bulk Container) tanks used for urine sequestration
• Reusable
• Constructed of high-density polyethylene (HDPE)
• Ideal for storing liquids
• Holds the same capacity as five 210 litre drums, in less space 
 Cost • One (1) 210 litre barrel $5
• Three (3) 1,040 litre IBC tanks (urine sequestration), $100 each
• Wall mounted dry urinal $502
• 2 m of 10 cm ABS conveyance pipe, plus fittings, $30 
CommodeDesign inspired by the Joseph Jenkins Loveable Loo™
Cabinet Sealed fir, pine, or other common woods capable of holding a 19 litres container; dimensions: 38 cm wide, 51 cm deep, 38 cm tall
If the cabinet is sealed, negative air pressure devices can be installed for source prevention of all odors 
Lid Plywood 
Toilet seat Standard, compression molded plastic; height from floor: 41 cm 
Container 19 litres with lid (excreta collection device) 
Cost Materials: about $20, labor $30 
Features, recommendations • Waterproof, sealed wood
• Easy to install, permanent, odor free
• No electricity, water, plumbing connections required
• Inexpensive 
Optional Negative pressure ventilation fan to prevent odors during use, vents to outside the living space 
Compost processor 
 Bins (nine count, three modules) • Dimensions
 ○ Exterior 7.3 × 5.9 metres
 ○ Bin interior dimensions 1.2 × 1.2 × 1.1 metres
 ○ Bin capacity: 1.66 cubic metres
• Walls
 ○ Durable, low-cost, 20 × 20 × 40 cm concrete blocks (insulation)
 ○ Vermin proof
 ○ Wooden sill plate for roof support (located on top of walls)
• Bottom
 ○ Sloped concrete pad
  ▪ 10 cm above-pad perimeter lip
 ○ Waterproof
 ○ Center drain grate (leachate collection)
• Roof assembly (sloped)
 ○ Corrugated, galvanized steel
 ○ Rain accumulation prevention
 ○ Vermin mitigation
 ○ Hinged
 ○ 3-bin module shares a common roof 
 Sump area (plumbing) • Leachate collection includes drain grate, sump enclosure, lid
• 5 cm internal diameter ABS piping and fittings with 2% slope
• Contamination prevention of local soil and groundwater 
 Ventilation • Wire mesh screen air vent (hardware cloth)
• Vermin and insect management
• 902 cm2 per bin 
 Security Gated courtyard (hinged and latched) 
 Cost Materials: $2400 
 Features, recommendations Nine (9) bin system accommodates 19 full-time adults 
Urine collection devices 
 Bottles • Available in many sizes and types
 ○ As virgin containers, purposed for urine
 ○ As recycled beverage containers
 ○ Portable, can fit in large pocket
 ○ Personal
 ○ Easily sanitized
 ○ Require ability to cap and seal tightly
 ○ Rinse 3 times with 5–10 ml water and empty into collection container to clean, reduce odors and struvite formation 
 Urethral extension device (optional) • Multiple models commercially available
• Personal hygiene device, cost about $12
• Portable, personal, easily sanitized
• Can also use a simple funnel 
Urine depot 
 Urination station Consists of a small shelter to house a combined excreta commode and wall-mounted dry urinal and surrounded by urine sequestration tanks. Used as a toilet by visitors and gardeners. 
 Features, recommendations IBC (Intermediate Bulk Container) tanks used for urine sequestration
• Reusable
• Constructed of high-density polyethylene (HDPE)
• Ideal for storing liquids
• Holds the same capacity as five 210 litre drums, in less space 
 Cost • One (1) 210 litre barrel $5
• Three (3) 1,040 litre IBC tanks (urine sequestration), $100 each
• Wall mounted dry urinal $502
• 2 m of 10 cm ABS conveyance pipe, plus fittings, $30 
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