changing the use of water tank

[Ekeno]

I am instaling watermaker in my Jeanneau 469. I think that it´s the momment to use the water tank 235 liter aft starbors, to increase the diesel capacity.
Only I need to make a deep cleaning and connect the new piping?

[TheOffice]

You will also need a new fill hose rated for diesel, fuel line to connect to a manifold and/or a transfer pump.

[Ekeno]

Thank´s to "La Oficina"....Annex components and tank breathing are covered.
The query points to the material of this type of tank, because when reviewing the factories of this parts, the construction refers to the same type of high resistance polyethilene, 10 mm wall, for waste, water and diesel.
If so, no I have to change the current tank using for water.
Best regards