Triple-S is a six-year learning initiative focused on sustainable rural water services at scale across multiple countries. The goal is to facilitate learning within the water sector and enable a shift to sustainable service delivery. Triple-S acts as a catalyst for stakeholders and aims to centralize learning. It employs monthly and annual planning/review cycles to capture environmental factors and document progress toward objectives of influencing sector change. The learning strategy focuses on narratives of change toward sustainability and the enabling process, with different learning needs addressed through regular learning retreats and documentation of lessons captured.