Also interesting that they had to dry it out and the planks shrank by half. I wonder if they considered having to replace the liquid with something else, such as was done with the Vasa ship which was submerged for a few hundred years.
https://maryrose.org/news/mary-rose-enters-final-phase-of-co...
For almost three decades since being raised from the Solent, the hull of the Mary Rose – Henry VIII’s 500-year-old flagship – has been continuously sprayed, first with chilled fresh water to remove salt and then with Polyethlene Glycol (PEG), a water soluble wax.