The Taipans were made with anti-corrosion paste between all the surfaces where SS might touch Al- a sort of yellow compound- I have been unable to get the exact same stuff here in the US, but they do have similar compounds and it should go on every screw,plate, etc. that contacts Al- ideally even between cast and extruded Al IMO. I haven't had a problem with my Taipan in 10 years but then I only "visit" salt water and, as Timbo says, religiously flush it with fresh water ASAP. I would suggest carefully taking corroding components apart (see WD-40 note above), cleaning very well to remove any corrosion/salt, dry carefully and reassemble with plenty of anti-corrosive gel (Tef-Gel is one brand I have used here).

Kirt