Waterfall showers, also known as Cascada Showers, typically use more water than traditional shower heads because of their wide and large design. They have a large rectangular head that sits high on the wall, allowing water to flow down in a wide, cascading stream. This design allows for a luxurious and spa-like experience, but it requires a larger volume of water to create the cascading effect.

However, it is worth noting that many waterfall shower heads are now designed to be low-flow, meaning they use less water than traditional shower heads while still providing a luxurious shower experience. These low-flow shower heads feature technology that reduces the amount of water used without sacrificing performance. Some of the popular low-flow shower heads that can be used in a Cascada Showers include aerating, laminar-flow, and air-injection shower heads.

In summary, while Cascada Showers can use more water than traditional shower heads, it is possible to find low-flow versions that conserve water while still providing a luxurious shower experience.