Tend battery of condenser tubes.
What does a Condenser Tube Tender do?
Tends battery of condenser tubes in which gaseous mercury is condensed into liquid mercury: Places water-filled buckets at base of each tube to collect liquid mercury. Removes buckets as mercury accumulates, pours off water, and strains mercury into steel flask. Pours mixture of water, mercury, and dust onto sloping table, adds quicklime, and stirs mixture with hoe to separate remaining mercury from sediment.