CALL FOR EXPRESSION OF INTEREST - Consultancy to Conduct a Life‑Cycle Costing and Cost‑Benefit Analysis of Riser Pipe Options for Rural Handpumps in Zambia Reference: EOINGOWASH/STR2026/01 Initiative: The Stop the Rot Campaign Procuring Entity: NGO WASH Forum (Zambia)Assignment Duration: 25 working days over 6 weeksSubmission Deadline: 23:59pm (Zambian Time), 16 September 2026INVITATIONThe &n