Three boilers, what to do?

kami4444

I have three boilers I am given.

1. A bladder boiler's air side is water logged, what to do?

2. A compression boiler air side is water logged what to do?

3. A diaphragm boiler is water logged what to do?

For 1, 2, and 3 what would you associate A, B, C with?

A) Replace the tank
Bleed the air from the tank
C) Bleed water from the tank
D) Drain water from the tank

Doing an assignment, all help is appreciated!

bladder boiler 1)
compression tank 2)
diaphragm tank 3)