Neighboring Silo Sump Pumps
These bottom-of-silo pumps are part of Juliette’s drainage work; the nearly dry pump now needs intermittent manual operation.
Story so far
Juliette seeks to restore the pumps in the sump basins at the very bottom of the silo. She believes their simple construction and design for submersion should allow them to work, and plans to supply twenty-four-volt power from IT. She installs a landing switch so Solo can test the power while she is below, intending to descend with the wires switched off. Underwater, she connects replacement wires to a pump whose impeller condition remains unknown. Its outflow pipe rises along the wall into overhead mechanical lines, and she worries that a tug could break the improvised ground connection. She leaves the newly wired pump before testing it.
The operating pump eventually draws from a nearly empty shaft with about a foot of water remaining. It overheats and rattles before Jimmy shuts it off. When the basin refills, he must restart it by manually shorting its starter switch.
Appearance
The pumps sit in sump basins at the bottom of the silo. A submerged pump has replacement power wires and an outflow pipe running up the wall into overhead mechanical lines.
Role
The pumps remove floodwater from the silo’s lowest levels. The nearly empty basin now requires the operating pump to be stopped and restarted as water collects.
Relationships
Sources — 12 recorded facts, by chapter
- The pumps Juliette wants to restore are in sump basins at the very bottom of the silo.
- Juliette believes the sump pumps should still work because they are simple and designed for submersion.
- Juliette intends to run the inactive pumps with twenty-four-volt power from IT.
- Juliette has installed a switch on the landing so Solo can test power while she is below.
- Juliette intends to descend with the pump power wires switched off.
- Juliette connects replacement power wires to a submerged sump pump without knowing whether its impeller is sound.
- The sump pump’s outflow pipe runs up the wall into the overhead mechanical lines.
- Juliette worries that an accidental tug could break her improvised pump ground connection.
- Juliette has wired a new pump but left before testing it.
- The pump draws from a nearly empty shaft with about a foot of water left.
- The pump overheats and rattles before Jimmy shuts it off.
- Jimmy must restart the pump by manually shorting its starter switch when the basin refills.