When installing a fresh water generator of the evaporator type you would install also a hardening filter on the output line of the generator.
The line between generator and hardening filter must be in a corrosion resistant material e.g. CuproNickel or SS316 type stainless steel.
The water...
It is known that smoke deposits next to welds in C-Mn steels interfere with the adhesion of the primer coat if not properly removed, eg by acid cleaning or abrasively.
Can anyone give me hints/links to literature about this?