Its great to read this discussion. I have been having the algae (actually, fungus, so I learned on this conference) for a couple of months in my '84 300 SD. Was told to clean out the tank, but have been working with BioBor (that I finally found easily in West Marine boat stores) and I am about to change the 2 filters.

I see nothing in the manuals about how to change (or clean) the fuel strainer. Can anyone point to directions on that (I searched this site but haven't found it yet). I must have stuff getting stuck there because my prefilter (which was changed 2 months ago) is looking clear still and I am starting to experience power loss again....

Also, I see a lot on the purge, but haven't yet found how to do it (but I am searching the site on that one too).

Thanks.

Dan '84 SD300