Wet Republic has never let me down. It's crazy on a Sunday, and always manage to have good time when it's chill on a weekday. You can get a fully-loaded deluxe cabana for a $500 spend minimum during the week. I recommend getting at least a day bed on a weekend so you can have your own space because it gets packed. They have the largest and best drink menu of all the Vegas pool parties. Make sure to get the chicken fingers and waffle fries-they are insane!!!