![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
What is the most usual reason for the fresh water-sea water heat exchanger fouling in the sea side?
A.
lube oil sludge accumulating in it
B.
dirt and scale etc , formed on the surfaces
C.
deformation of the tubes and the shell or the plates
D.
lube oil leakage into sea-water side