A Guide to Rainwater Harvesting

A Guide to Rainwater Harvesting

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Rainwater harvesting is an ancient technique enjoying a revival in popularity due to the inherent quality of rainwater and interest in reducing consumption of treated water. Rainwater collection has numerous benefits such as: free supply, low mineral and sodium content, reduction in non-point source pollution, and reduced demand on water utilities.

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Description

Rainwater harvesting is an ancient technique enjoying a revival in popularity due to the inherent quality of rainwater and interest in reducing consumption of treated water. Rainwater collection has numerous benefits such as: free supply, low mineral and sodium content, reduction in non-point source pollution, and reduced demand on water utilities.

The scope of this course is to serve as a primer in the basics of residential and small-scale commercial rainwater harvesting systems design. The design process includes choosing system components in the most cost effective and advantageous manner. It is intended to serve as a first step in thinking about options for implementing rainwater harvesting systems, as well as advantages and constraints.

Rainwater Harvesting System Components
Water Quality and Treatment
Water Balance and System Sizing
Rainwater Harvesting Guidelines
Cost Estimation
Financial and Other Incentives
Rainwater Collection Case Studies

Learning Objectives

Basic Rainwater System Components
Catchment Surface, Gutters, and Downspouts
Leaf Screens
First-Flush Diverters
Roof Washers
Storage Tanks
Pressure Tanks and Pumps
Treatment and Disinfection Equipment
Water Quality Standards
Factors Affecting Water Quality
Water Treatment
Water Capturing System Capabilities
Rainfall Distribution and Calculating Storage Capacity
Estimating Water Demand
Rainwater Harvesting Best Management Practices
Building Codes
Cistern Design, Construction, and Capacity
Backflow Prevention and Dual-use Systems
Required Rainwater Harvesting Systems
Cost Estimation and Comparison
Financial Incentives
Tax Exemptions
Municipal Incentives
Rainwater Harvesting Case Studies

INTENDED AUDIENCE

This course is intended for use by engineers, contractors, and landscape architects.

BENEFIT TO ATTENDEE

Students will gain an understanding from this course of the benefits and design methods of rainwater harvesting systems.

COURSE INTRODUCTION

This course is based on the publication, Texas Manual on Rainwater Harvesting. The techniques and methodologies described in this course document are a great introduction to rainwater collection system design and planning.

COURSE SUMMARY

This course demonstrates the basic elements of rainwater harvesting. Information on planning and sizing of systems as well as the benefits of rainwater collection can be gained from this course.

Additional information

PDH Hours

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