1. What is Water and Wastewater Flow?

The water and wastewater flow calculation estimates the total daily water demand or wastewater generation for a given population in the Philippines. This is essential for designing water supply and sanitation systems.

2. How Does the Calculator Work?

The calculator uses the flow equation:

Where:

• \( Population \) — Number of people served
• \( Per\ Capita\ Usage \) — Average daily water use per person (m³/person/day)

Explanation: The equation multiplies the population by the average daily water usage per person to estimate total system demand.

3. Importance of Flow Calculation

Details: Accurate flow estimation is crucial for designing water supply systems, wastewater treatment plants, and ensuring adequate service provision in Philippine communities.

4. Using the Calculator

Tips: Enter population as whole number and per capita usage in cubic meters per person per day. Typical values in Philippines range from 0.1 to 0.2 m³/person/day for domestic use.

5. Frequently Asked Questions (FAQ)

Q1: What are typical per capita usage values in Philippines?
A: Urban areas typically use 0.15-0.2 m³/person/day while rural areas may use 0.1-0.15 m³/person/day.

Q2: Does this include commercial and industrial water use?
A: No, this calculates only domestic water use. Additional capacity should be added for commercial/industrial needs.

Q3: How does this relate to wastewater flow?
A: Wastewater flow is typically 80-90% of water supply flow, accounting for losses and non-discharged uses.

Q4: What factors affect per capita usage?
A: Climate, income levels, water pricing, availability of water-saving devices, and cultural practices all influence usage.

Q5: How should peak flows be accounted for?
A: Design flows should include peak factors (typically 1.5-2.0 times average daily flow) to account for daily/hourly variations.