If it please the group, a few thoughts on holystoning of decks. This knowledge I have gleaned from several older sailors, old when I was young, who worked tall ships, were in the Navy when holystoning was still done (abolished in 1931, by the way) and who heard tales of the sea from their fathers, grandfathers and, in one case, great-grandfathers. Taken as a whole I remember this: Holystones were so called because the use of one brought the user to his knees, as in a prayerful position. Later in the US and British navies a pole was attached, but never mind that. It was still a holystone. As for why use a stone in this manner we must first think of the properties of wood.
Wood, when exposed to water and subsequent drying, expands and contracts. Wood planks, not being uniform, might expand and contract differently from its neighbor plank. This might raise the edges of the seams, a bad thing. Wood, being porous, allowed anything spilled on deck to stay on deck, no matter the washing. Also wood, when subject to the foot traffic of leather-shod feet, would have been polished to a high, and very slick, sheen. Last, when wood dries, it contracts, opening up the seams in between in spite of any caulking. This would make the deck leak like a sieve, soaking the lower decks whenever it rained or waves splashed aboard.
Holystoning, with water, fixed all of these things. It flattened the seams. It cleaned off anything that had been spilled on the deck and soaked in (at least superficially soaked in.) It roughed up the surface, removing the polish caused by traffic. Furthermore, as anyone who works with wood can attest, wetting a sanded surface "raises the grain" causing any wood bits not firmly attached to curl up. On a deck this would create a non-skid surface. Wetting the deck periodically kept the deck tight, preventing leaks. If done with salt water (and why would you waste fresh water to scrub the decks?) the salt left after evaporation served to preserve the wood. Lastly, the sand from the wearing of the holystones would have improved the nonskid properties of the deck.
Now I haven't got a single reference for any of this, just the testimony of old sailors which, taken collectively, is pretty good stuff. Now to place all this in our period.