Q. How often should a boiler be cleaned?
A. It depends entirely upon the condition of the feed water used and the amount of service exerted from it. It may vary from once or twice a week to once in two or three months, or even longer.
Q. Does a boiler only require the regular cleaning?
A. No, it should be blown off three or four times a day by the surface blow-off.
Q. Should the surface blow-off be left open any length of time?
A. No, only a few seconds at a time, say from fifteen seconds to a minute, even longer on larger boilers, but the engineer must use his own judgement in this matter.
Q. What does the surface blow-off do?
A. It blows out all the impurities that arise in the form of scum on the surface of the water, thus lessening the amount of scale formation.
Q. How should a boiler be cleaned?