How to make a first-flush diverter for a rainwater harvesting system
Category | Water & Sewage
Arkitrek are embarking on an 18-month program to engage the community of Mantanani Island to measure and understand their freshwater resources. The program is funded by the UN Small Grants Program and will be run jointly with our long term partner on Mantanani; Camps International. Most importantly however, the program has the blessing of Albi, the sceptical and quick witted Headman of Mantanani.
There are two common misconceptions about septic tanks, 1. Septic tanks are an acceptable sewage treatment solution, 2. Septic tanks are not supposed to overflow. This article illustrates what happens inside a septic tank, what should happen after the septic tank and appropriate effluent standards to be aiming for.
You will recall that we have been building a biogas digester at Camp Tinangol with Camps International. Reasons for the failure at Tinangol are due perhaps not surprisingly to poor workmanship. The body of the digester was not watertight and the fixed dome was not air tight.