Philippines ARMM | GIZ | 14.06.2017 Resources Download:Rain Water Diverter System Repair and Fabrication: Design, Materials and Steps to Fabricate Rain Water Diverter System Rain Water Diverter System - Repair and Fabrication ARMM 2017.pdf (0.85 MB) Rainwater harvesting is a particularly effective low-cost intervention for schools with limited water access. This leaflet provides visual step-by-step guidance for the installation of rainwater diverters in schools.