The salt is chemically dissolved in the H2O. Mud is just particles floating around in the water. It's simple mechanical filtration.
Salt is dissolved in water, mud particles do not dissolve in water. When passed through a medium (a filter) the mud particles are caught, the salt particles are not You can use distillation or reverse osmosis to remove salt from water.
I'd say the tenants should be responsible for the grease on the kitchen wall around the stove, and as far as the broken window, the tenant should be responsible for that as well. Your management company should have contacted you about these two problems, especially the broken window glass unless there were circumstances that made replacement of the glass an emergency ( which was very likely ). The grease could have waited.
I'd also be looking for a different management company who will contact you whenever there's an emergency situation. You're their boss so they should always contact you when something out of the ordinary occurs. It seems to me there are two different entities taking advantage of you.
You can fire one immediately and handle a rent increase with the other in the future.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.