Issue 2 and Volume 67.

CORRESPONDENCE Use of Coal Oil in Hydrants To the Editor: Regarding your article in Dec. 17th number on “Fire Hydrant Care in Cold Weather,” we beg to state that this is a very interesting matter in cases like ourselves where the temperature drops as low as 30° below zero. We have been in the habit of making weekly inspections of our hydrants and this year have adopted the practice of putting about a gallon to a gallon and a half of coal oil in the hydrant where, owing to the level of the ground, the drip of the hydrant is below the lake level. Hydrants that formerly were continually freezing have given us no further trouble since this was adopted. We would like to get the opinion of others as to this method. We do not think that the quantity of coal oil would add to the fire hazard as…

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