Bladders make me nervous. Unless they are
secured with a solid tank, in which case what
do you need a bladder for? Water can be
taken out at the filters, and I tend to keep my
tanks filled so condensation is not a big
concern for me.

"DSK" wrote

But first, I am definitely putting in a polishing system, with a pump &
manifold that will double as a transfer & stripping system.

Not really, but I've got a good idea where it's going & how it's to be
laid out. I also have to do a little more research on components, but
the general plan is to use a 10 ~ 15gpm 12V pump & hose rather than hard
piping.

It's surprising that more boats aren't using fuel bladders. They're very
common in industry nowadays, they are very tough & have a number of
advantages IMHO.

DSK