One of my winter tasks was to get the (diesel) fuel tank on my boat cleaned out and the fuel polished. I have owned the boat for 8 years, use very little fuel each season, keep the tank full, and always used a biocide. I don't know what the PO did. One of the things the yard recommended was to add an electric fuel pump to help in bleeding the engine (1983 Universal 5411). Can you recommend a specific pump for this use and some idea how involved a job adding it is? Also, are there any primary filters that include a manual pump or squeeze bulb for bleeding the system? I appreciate any suggestions here. (BTW the fuel tank had a very thick layer of sludge at the bottom and the pick up tube was nearly clogged with it.) Thanks.