WATCHING THE STRAINERS.
When the top of a tank is in bad order, and permits cinders and small pieces of coal to fall through rivet-holes, or through seams, the engineer may look out for grief with his pumps or injectors. On the first signs of the water failing, he should examine the strainers; and he will probably find that these copper perforations, which stand like wardens guarding the safety of the pumps and injectors, have accumulated a mass of cinders that obstructs the flow of the water.