A drop of water is taken to a laboratory in San Juan, Puerto Rico to determine its purity. The film communicates scientific health information, such as the need to boil drinking water.
| Release Date | April 13, 1949 | |
|---|---|---|
| Status | Released | |
| Original Title | Una gota de agua | |
| Runtime | 10min | |
| Budget | — | |
| Revenue | — | |
| Language | Spanish | |
| Original Language | Spanish | |
| Production Countries | Puerto Rico | |
| Production Companies | Comisión de Parques y Recreos Públicos de Puerto Rico | |