This is information I got from my friend Rachel Lindsay (whose mother Peter met on his return from Nicaragua) if you haven't already, look up DRY TIOLETS or BAÑOS SECOS. They are exactly what communities like Nuevo Amanecer need. They even could possibly be less work and money to build, and every year produce useable fertilizer. If you are concerned about sanitation you can make ones with two chambers so the solids ferment an entire year before using. I visited a small community north of Achuapa called Lagartillo, where a british brigade came and replaced all the normal drop outhouses with dry toilets, and everyone raves about them. Honestly, the villagers all love them and have completely stopped using their drop toilets. Cleaner, don't smell, and their coffee plants are grown organically and thriving. I was super impressed. Here are some links http://www.tierramor.org/permacultura/saniseco.htm http://www.oursoil.org/drytoilet.php http://www.zoomzap.com/download/construccion-SESseparador.pdf check it out when you can mc