Our persona is a 40-year-old man named Manuel, who lives in Mérida, Yucatán, with his wife and his two children. He’s an engineer who works in construction, and he’s also very ecological. He loves sports, watching movies, and playing soccer with his children. He just recently purchased a house in Mérida, but he’s having some issues with the domestic residual waters. As Yucatan’s soil is karstic, the water is not filtrated correctly.