Hariyanto is an authority when it comes to water pipes. Thousands of meters of pipes have been uprooted and laid by him in his 20 years of service as a PAM Jaya (Jakarta Municipal Drinking Water Company) technician. With that experience, nothing surprises him in the field of pipes. Almost nothing, that is.

One day, two years ago, the 40-year-old man was shocked by something unusual on Jl. Tanjung Duren Utara 4. In one of the networks, Yanto di