When too much air has been absorbed by water in the expansion tank of a closed system, the tank must be:
a. Attached to an air separator
b. Filled
c. Removed
d. Drained
e. Replaced
Answer: D
When too much air has been absorbed by water in the expansion tank of a closed system, the tank must be:
a. Attached to an air separator
b. Filled
c. Removed
d. Drained
e. Replaced
Answer: D