Penta Geyser has five vents, providing the basis of its name.

Due to its location in the Sawmill Complex, Penta has a very close relation to the activity of Sawmill and the other geysers in the area.

Penta's eruptions usually begin when the water levels in the complex are rising.

This usually occurs after Spasmodic, and sometimes Tardy Geyser's eruptions begin.

The eruptions are more common when the Sawmill Complex is in "Penta-Churn" mode.