When it comes to sustainability and resource conservation, the debate between shower and bathtub is a recurring topic. Which of the two options consumes more water? The answer, as with many environmental questions, depends on several factors, such as usage time, bathtub size, and type of shower.
Let’s analyze the variables to understand, once and for all, whether the shower uses more water than the bathtub or vice versa!
The water consumption of a bathtub
A typical bathtub can hold between 150 and 200 liters of water for a full bath. This means that, regardless of the time you spend in the bathtub, the amount of water used is already determined when filling it. Immersion baths can be relaxing, but the impact on water consumption is higher, especially if done frequently.
The water consumption of a shower
The shower, on the other hand, has variable consumption, depending on the time spent under the water and the flow rate. A conventional shower has an average flow rate of 10 to 15 liters per minute, while low-flow models consume about 7 liters per minute. In a quick 5-minute shower, a low-flow model would use only 35 liters of water, much less than a full bathtub. However, a prolonged 15-minute shower with a conventional model can use more than 150 liters of water, rivaling the consumption of a bathtub.
Factors influencing consumption
- Type of shower: Showers with flow regulators or eco-friendly models consume significantly less water.
- Shower duration: The length of the shower is crucial in determining total consumption. Long showers can easily exceed the consumption of a bathtub.
- Frequency of use: If you use the bathtub occasionally, the impact may be lower than daily long showers.
- Purpose of the bath: Immersion baths are ideal for relaxation, while showers are more practical for everyday use.
The sustainable choice
To minimize environmental impact, the shower is generally the most efficient choice, as long as time is controlled and a low-flow model is used. If you’re a fan of bathtubs, save them for special occasions and, if possible, reuse the water for other purposes, such as watering plants.
There is no single answer to the question, as water consumption depends on the context and habits of each person. However, in general, short low-flow models tend to be more economical and sustainable than frequent use of a bathtub. Adopting conscious practices in daily life is key to balancing comfort and sustainability.
This content was created with the help of AI and reviewed by the editorial team.
