Water and waste water service providers in Europe have a common aim: to provide safe, reliable and sustainable water supplies and waste water services to all. Delivering our vision in the future will require operators to meet new challenges, including scarcity, affordability and environmental challenges such as climate change. These factors, among others, will require water and waste water service providers to make even better use of limited financial resources in order to ensure that the necessary funding and investment is secured for a sustainable water supply for present and future generations. The 3Ts framework developed by the OECD represents a powerful tool in unlocking our understanding of the sources of the funds which underpin this sustainable future. Better understanding of the accumulation/ combination of these funds will enable us assess their sustainability within the local context and support relevant decision-making. The session aim to promote this framework through a "handbook" and testimonies providing illustrations for European cities and countries