I don't get why some of these cities, like Phoenix or Las Vegas, just don't build a massive pipe/hose that connects the Pacific Ocean to the city
Because you can't drink salt water and desalination is far more expensive than draining the colorado river dry.
What if the Pacific Ocean water was only used for things like watering lawns and sewage and that cool fountain in front of the Bellagio and stuff while the "drinking water" remains the regular water that is used now?
Joke?
1. If you use salt water on your lawn it is going to die
2. Using saltwater for things like fountains will corrode the pipes into oblivion