Just FYI, there natural water pools are for non man made water bodies, like lakes and ponds.  Search for swimming pool and you'll get the right tag.

Also if you know a building is a house, you can tag it as a house and not just a building.

Instead of just tagging as a building, if you know it is a house, you can tag it as a house.  Most houses in the US are actually "detached houses" which is even more informative.

...yes there are a lot of tags, but you learn them one at a time.