
I will love to see use to salt water. One of the solution is to have salt evaporation pond for getting new salts (cleaned / refined salt / Sea Salt ?)
The process :
1) Construct a salt evaporation pond (construct made of rock and clay, maybe sand?) :
2) Fill the Vasais with Salt Water.
3) Wait X day for water to go to the ends
4) Harvest Salt (time to get special curio : Perfect Salt Crystal :https://i.imgur.com/SvcAuP8.jpg). Need a new tool for getting salt.
5) Maybe Clean the Evaporation pond ?
6) Do it again
The Q of salt depend of tools and evaporation pond.
The amount of salt depend of the salt water Q (1 liter of Q10 produce 0.01k, Q100 produce 0,10k.
The new salt can be use as an spice to get small hunger reduction for the food (5% to 20% at Q10 to QXXX : ie Food with 10 % hunger became 8-9%)
For getting deeper :
1) 2 tools for 2 types of salt :


2) Colored salt that depend of the salt level of the evaporation pond (with less water and less time get green salt, with more water and more time get rose salt).