Yes, you can put your Intex pool on grass, but there are a few things to keep in mind. First, you'll need to make sure the ground is level before setting up the pool. Otherwise, the pool may not fill up evenly. Second, it's important to choose a spot that gets plenty of sunlight. The more sunlight the better, as this will help keep the water warm. Finally, you'll want to avoid putting the pool too close to trees or other objects that could drop leaves or debris into the water.