In this episode of the Exec Exchange podcast, host Piers Clark interviews Engineer Rafael Zarate, President of the Center for Innovation at SAPAL in Mexico. Rafael shares his extensive background in water engineering and discusses his innovative work in water reuse, particularly focusing on indirect potable reuse using nano filtration technology. The conversation covers the challenges and successes of implementing this groundbreaking technology in León, Mexico, highlighting its environmental impact, cost-efficiency, and public acceptance. The episode concludes with Rafael's advice to his younger self about the importance of addressing climate change and water conservation.