[Gladrags1]

I think I may have a small fuel leak. When manually pumping the bilge, I get a bit of a sheen of diesel fuel. Granted that it could be from a previous owner's spill as a tablespoon of diesel will create a large rainbow but I would like to make sure that my aluminum tank that sits in the bilge is not leaking. I understand that a method of testing for leaks is to pump 3 psi into the tank and let sit for about 4 hours to see if there is any loss of pressure. I would like some advice upon the best tools to buy for this job. Or should I turn this job over to my diesel mechanic? Which will cost more - the tool or the mechanic? I have a shop air compressor. What else is needed?

Tod