I had the engineer out after my engine began to stall regularly, and a gauze element where the fuel line enters the diesel pump was found to be clogged with black, tarry particles. Was told this was diesel bug and I should get the fuel tanks cleaned out! This is a process that doesn't fill me with enthusiasm especially as there are two balanced tanks with a pipe between (just above the base of the tank), and apparently no drain plug. (A lesson here for boat builders). And of course the tanks are nearly full.
To avoid headaches getting access to the insides of the tanks, is it possible to pump out the diesel and strain it back into the tank, adding Marine16 at the same time? Or would simply adding Marine16 be worth a go? It seems to be good at actually dissolving the gunk.
Cheers, Will