de ceuvel: phase I 9 sanitation tion. This sanitation system will require some adaptation in terms of user behavior, but has the benefits of being comfortable and odorless. Alternatives to the Loowatt include standard composting toilets. COST & LABOR ESTIMATES Loowatt is still under development and we have requested a price quote from the UK-based company. A comparable DIY composting toilet system will cost an estimated 300 € and require five hours of de-installation (of the existing toilet) and installation of the new dry system. The old toilet can potentially also be sold for a small profit if it is not too old or damaged. COST AND LABOR SUMMARY (PER BOAT) component basic repairs DIY insulation DIY solar collector DIY heating system To eliminate the need for a sewage connection and simplify the processing of organic wastes on site for energy production and nutrient recovery, we recommend that all boats on site be equipped with a dry toilet. In contrast to standard flush toilets, composting toilets are very simple constructions that collect waste into a compartment. We recommend the Loowatt toilet (pictured above), which stores waste in a sealed biofilm to eliminate odor. The sealed storage compartment must be emptied once a week and can be directly taken to the on-site digester installaDIY rainwater collection DIY sensor system DIY daylighting DIY green roof Sanitation: dry toilet € 100 2.500 1.600 1.000 800 500 300 700 300 hours 10 90 40 60 20 10 20 80 5 budget limit However, because these costs are based on retail material prices, we hope to achieve significant savings by sourcing waste materials. Metabolic Lab will work in close collaboration with the builders and architects to evaluate the suitability of found materials for construction as well as design purposes. In the pilot boat construction phase, all costs and actual labor hours will be carefully recorded to improve estimates for the remaining retrofits. As seen in the chart to the leſt, our current estimates indicate that the 5.000 euro materials budget will just barely suffice for basic repairs, insulation, and the installation of the heating system. The remainder of the desired phase one activities falls beyond the current budget. Pagina 46
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