This is my first season with diesels (Sealine S37 with twin KAD43's) and although I am very competent with petrols there does seem to be an emphasis on filtration of water from the fuel.
I have a first fuel filter which is fitted to the boat and is about 2 metres from the engine and a second 'Volvo' filter on the engine.
I tweeked the little tap thing at the bottem of the first filter, nothing came out except air seemed to be sucked in. This I had to laborously bleed off at the engine end and being so far from the engine took ages.
I feel like I'm missing a trick or two. Please explain if I really have to go through this, if so how often and is it really the messy operation that I have experienced.