Thanks for your input Deezel. I think I will
post a topic just on algae and see what
responses I might get.

I havn't had a mechanic look at it yet
actually. Only thing mechanic has done
is clean my injectors.

I know it's full of algae because the pre
filter stops up in no time, with black
flakes. I'm sure this is algae. Even when
I put in a new filter and prime the fuel, more black flakes are sucked up into the new filter as I pump the primer.

I'll see if I can find some Diesel Dr.