1. What is Water Efficiency Calculation?

Water efficiency calculation for new dwellings determines the total water consumption per person per day by summing fixture consumption and adding a standard base value of 5 l/person/day.

2. How Does the Calculator Work?

The calculator uses the water efficiency equation:

Where:

• \( fixture\_consumption \) — Water consumption from fixtures (l/person/day)
• \( 5 \) — Base water consumption value (l/person/day)

Explanation: This equation calculates the total water efficiency by combining fixture-specific consumption with a standard base consumption value.

3. Importance of Water Efficiency Calculation

Details: Accurate water efficiency calculation is crucial for sustainable building design, water conservation planning, and meeting regulatory requirements for new dwellings.

4. Using the Calculator

Tips: Enter fixture consumption in liters per person per day. The value must be a valid non-negative number.

5. Frequently Asked Questions (FAQ)

Q1: What is included in fixture consumption?
A: Fixture consumption includes water usage from toilets, showers, faucets, and other water-using fixtures in the dwelling.

Q2: Why is there a base value of 5 l/person/day?
A: The base value accounts for essential water uses that are not covered by specific fixture measurements.

Q3: What are typical water efficiency values?
A: Typical values range from 80-150 l/person/day, with lower values indicating better water efficiency.

Q4: How can water efficiency be improved?
A: Water efficiency can be improved by installing low-flow fixtures, water-efficient appliances, and implementing water recycling systems.

Q5: Are there regulatory requirements?
A: Many regions have building codes and water efficiency standards that new dwellings must meet.