24 Jan '13, 6pm
Earthship Guatemala Update Day 4
The day ended with another Q&A session from Phil, the project director. One main focus was the ‘outlaw’ septic system for this building design. The evolution of the S-Pod has allowed for this building to have a flush toilet. This system, being designed down, allows for a 5ft diameter hole dug onsite, rather than a septic system costing $1,000. The cost for this septic only includes the plastic that it is lined with. The septic basically has two chambers, one for liquids and one for solids. The septic has a rebar-framed dome on top, which is plastered with a small hole at the top. The solids go inside of a dug hole with stacked tires that is surrounded by large rocks. Solids will break down themselves and the tank will never have to be pumped, unless the bacterial activity is altered which can slow the process (i.e. addition of bleach). Liquids essentially leak through the ...