Skip to content

Resource Library

WATER DEMAND CALCULATOR

Website

Overview

This Water Demand Calculator estimates the supply demand for residential buildings including single- and multi-family dwellings, as well as cold and hot water branches and risers for indoor water use.

Quick Links

Access the We Stand Water Demand Calculator

Estimating Plumbing Sizing for Water Demand

Design a better plumbing system to deliver water effectively while conserving water and maximizing comfort. 

Watch Practically Perfect Plumbing Part 1 and Part 2 (CEU webinars) for further guidance. 

Access the We Stand Water Demand Calculator

Related Resources

Download this BPA resource

Contractor Toolkit: Attracting Business Using Search Engine Optimization (SEO)

June 23, 2025

Download the Contractor Toolkit to improve your local visibility and help you attract customers online.

Download this BPA resource

BPA: Building Science Principles Course: A Free Resource for Educators

June 26, 2025

This introductory course, presented in slideshow format, is designed to be a starting point for those interested in any career in residential energy efficiency. The course provides learners with basic information on how homes work through the lens of building science.

Hyperlink icon to reveal a BPA Resource

BPA: Nevada Contractor Meeting Series – Summer 2025

June 25, 2025

Join BPA's contractor roundtables for Nevada on Zoom this summer to discuss the status of initiatives such as Home Energy Rebates, relevant tax credits, and incentives.