Soldato
Yeah, it's something i'll be building myself so just need to get my head around where to build the boundary. The place we rented didn't have any walls beyond the metal fencing and that wasn't horrific for dust. Maybe because of the hills/land terracing there are some natural barriers. I know there are certain times of year the Sahara dust gets blown up (March/April time), but that's just something you have to accept.
I'm half debating a salt water pool too, although can't decide on pros/cons completely. I was avoiding it for a pool cover, but i don't think i'm going to bother with one now. My parents have some and it just seems to trap dirt on top of the water/cover requiring extra maintenance and doesn't do enough to retain heat.
Definitely agree with you about the pool cover. They look ugly as well, and for me at least part of the point of having a pool is to make the garden look nice.