On Sep 19, 2:36?pm, Wayne.B wrote:
On Wed, 19 Sep 2007 04:53:06 -0700, Warren
wrote:

Currently copper pipes are used for all diesel fuel lines.

That is not true, at least not on uninspected vessels. There are
flexible hoses rated for diesel fuel and they are quite common.

We don't know how old the poster's boat might be.
My 1983 boat uses copper tubing for all fuel and return lines.
Certainly doesn't and wouldn't use "pipe," but I suspect the poster
really meant tubing.

If I were building a new boat, I would use properly rated hoses rather
than copper tubing.