The trouble with being a clever sod like me is that one overrates ones ability to to spot faults and when buying a boat assumes that as people risk their lives in boats that a boat has had some maintenance and where there is a fault that it should have been mentioned.
Mind you with the boat I have just bought had I insisted on a sea trial it would have broken down as the fuel filter and sediment bowl were full of muck as was the bottom of the tank, in addition the 6" Rubber Exhaust Pipe was spewing out water inside the boat from a split in the rubber. And to get to it I have to dismantle the back of the boat to lift the diesel tank out to even be able to reach the clips which hold the rubber pipe to the exhaust outlet.
So what should I have done. Its easy to say buy a newer boat (this is 15) as the life expectancy of rubber exhaust pipes is limited. But the last boat I had was 20 when I bought it and I had it for 5 years and I had no trouble with it whatsoever.
I am probably more annoyed because I wanted to launch the boat tomorrow and dont look foward to another 2 or 3 days work, but thats the joy of boat ownership and if I couldent handle it I should get out of boat ownership.