If I recall - Frank Napuro recomended specifically  against the use of
Biobor at the Krogen Cruisers meeting several years  ago - it is an
emulsifing agent and
allows diesel fuel to absorb even greater amounts of water than the 7 to 10
% that it " normally " takes up. And it is this resultant cocktail that is
put through the filters  - I have forgotten  the amount  that it is possible
for diesel to absorb with the use of Biobor -- something about twice that
amount of water - it really is an effective produce -- that would be then
say 20 % water / fuel mix .. Doesn't sound like I want to try to put that
cocktail  through  either my filters or my engine -- and shouldn't wonder if
my engine smoked when I did ..

 I believe he recomended the use of an de -emulsifing agent - to

restrict the absorbtion of water and cause it to  precipitate to the bottom
where it can be drawn off . He recomended  MPW as one of several such
products -- MPW is used by
several industrial companies in their long tern storage tanks - like Bell
Telephone as well as the Coast Guard  and Carnival Cruise Lines . ( heck I
think these guys try every darn thing that comes along - just like we do  --
so who uses what really doesn't  count a great deal  )

There remain a multiplicity of options  to deal with fuel -- many of

them  seemingly  opposite  of each other ..

The de emulsifier agents are much more difficult to obtain -- unless

gotten through industrial suppliers or repackagers like MPW  --

They have a Web Page - use your search engine -- I don't keep it

bookmarked ..

                          All the Best
                                       Ken
                                      MV Mrs. Hudson

name so I can find it

David ,
    I found one of their brochures :
              McLane's Parts Warehouse
              103 NW 43 rd Street
               Suite D
              Boca Raton Fla   33431
               phone:   1-800 393 3915

      These are the same folks that distribute the Separ filters -- the

European  equal to Racors - which are made by Wix I think .

     I do not see their web site  or e-mail address listed -- but this

brochure is a little old . Give it another try maby with this new
information -- maybe try Separ .  I think the fellows name is Jeff McLane -
I last spoke with him a year or two ago.

 I'm using the 2001 product  - which they call a Combuston Catalyst :

the premiun diesel --- actually seems to be somewhat of a blend of a de
emusifier and a bioside -- seems to work pretty well for me - and the stern
of Mrs. Hudson is nowhere near as sooty as  before when I used the other
stuff . ( The Volvo seems to run a little rich - unless it is on the Turbo
range of RPM - actually I think it is not the best engine for the boat - at
least the way I run it at about 6.5 knts - which is beneath the turbo rpms )

It is pretty easy to get inside the tank of the Manatee and run a fuel
polishing  system  directly  through the tank access  plate on the top -
which I do once a year anyway .
Mrs. Hudson is an 86 and  last year I reached down and felt the scum
built up on the tank walls and bottom .and I had a cloged filter on our
cruise to DC . I talked with a friend of mine who was the service mgr for Am
Oil here in Baltimore about what it would take to clean the skum from the
walls - he suggested a toilet brush  -- seems like a simple solution to me .
I will try it when I set up the  polishing system .

 I really liked the polishing system on Mike Tulips boat that he and

Mark R rigged up --  I have removed my filters to rig up something similiar
over the winter.

Always something to be done to keep things running well .
All the Best
Ken
Mrs. Hudson