Modern Potable Rainwater Harvesting 2nd Edition is a major expansion and rewrite of the first edition by the same title. This book shows how to design, build, and maintain a rainwater system that consistently and reliably provides clean drinkable water to your whole house. This water is orders of magnitude cleaner than typical public water supply or well water simply due to the fact that source water is distilled water from the sky rather than ground water polluted with all kinds of toxins. Rather than trying to purify polluted water at high mass flow rates demanded of entire cities, a rainwater harvester maintains distilled water purity with low continuous flow through inexpensive filters and disinfection systems. This book discusses advanced oxidation processes (AOP), disinfection, biofilm control, filtration, plumbing and pumps, electronic controls, water testing, and system management using a spreadsheet. System sizing using a spreadsheet and local average rainfall data found on the Internet is discussed. How to survive droughts is discussed. How to build a low-cost high flow rate prefilter and motor-driven first-flush valve is taught. This valve is controlled by an Arduino microcontroller that receives inputs from a digital rain gauge, water level sensors, and user selection of first flush amount. Instructions are provided for building capacitive tank level sensors. Various types of digital rain gauges are discussed, including tipping bucket rain gauges (TBR), capacitive sensor gauges, and acoustic resonance gauges. The section on TBR gauges shows how to build a constant drip rate calibrator for TBR gauges with common plumbing hardware. Three different types of common capacitive gauges are discussed. Temperature compensation of the variation of dielectric constant with temperature or speed of sound in air is discussed, using both hardware and software. Three essential electronics controls are discussed including; a transfer pump controller, an Arduino-based pressure pump runtime monitor, and an Arduino-based first flush valve controller. C-code Arduino sketches are provided. Wireless control of the rainwater system is discussed, using a Raspberry Pi computer interfaced with the Arduino microcontroller through Xbee transceivers. Python source code for a GUI interface running on a Raspberry Pi is provided. Mathematical equations are necessarily provided for systems design, but a reader comfortable with algebra and trigonometry, or first-year calculus should have no trouble with the math. This book contains a vast amount of technical details on rainwater harvesting not found in any other book. Although primarily geared toward the self-taught DIY person, this book can be used in the classroom to teach potable water professionals.

Rainwater is the purest form of water on earth and water is a cyclic resource that is continuously cycled in nature and can also be reused for various activities after it is cleaned. Don’t you agree then that harvesting rainwater is something that should be a popular practice? Ancient India was well ahead of time, and civilization as early as Indus Valley already had excellent rainwater harvesting system. But, as we progressed along with the rest of the world, we abandoned our traditional practices; and at present we are trying to reintroduce the ancient conservation techniques and integrate them with the new technology to address our water scarcity. Let’s Save The Rain not only talks about the traditional and modern rainwater harvesting systems, but it is a short introduction to this important water conservation technique. The concept, its uses, and its close relationship with the environment are beautifully elucidated with experiments, DIYs, and math calculations. This book is an easy read that explores the concepts and increase awareness about rainwater harvesting.

This simple, step-by-step guide on harvesting rainwater takes you through the process of how to collect rainwater and store it for all your household needs. Scalable to any homestead– urban, suburban, or rural – you'll learn to choose the right rainwater collection system for your household, the various rainwater collection methods you can implement, and strategies to help you make the most out of your water harvesting. Here is a preview of what you'll learn... • Basic components of rainwater harvesting systems • Pre-requisites for setting up a rainwater harvesting system • The basic components of a rainwater harvesting system • Everything about storage reservoirs • How to treat water for quality assurance • How to maintain and use rainwater harvesting systems This guide transforms the intricate world of rainwater harvesting into an accessible, step-by-step roadmap. It meticulously leads you through every stage of setting up and maintaining a rainwater harvesting system, from understanding the basics of the water cycle to dealing with the impacts of climate change. Crafted with the homesteader in mind, this guide helps you integrate a rainwater harvesting system seamlessly into your lifestyle. You'll learn how to make use of rainwater in various ways, from cooking and drinking to gardening and livestock care.

Modern Potable Rainwater Harvesting shows how to design, build, and maintain a rainwater system that consistently and reliably provides potable water that is orders of magnitude cleaner than typical public municipal water. The book covers advanced oxidation processes, disinfection, biofilm control, filtration, plumbing, electronic controls, and water testing. Electronic schematics of essential control circuits are provided. Plumbing diagrams for both on-grid and off-grid systems are provided. Proper pump sizing for a given storage capacity is discussed. The book shows how to use a spreadsheet to properly size storage capacity based on actual rainfall data, collection area, and assumed daily usage rate. Mechanical design and fabrication details of key components are provided, such as automatic first flush divert valves, a rainwater pre-filter, disinfectant injection, and a water level sensor. The book contains unique information not found anywhere else, some of which disputes the teachings found in other sources. As one book reviewer put it, "I thought I knew everything there is to know about rainwater harvesting, but this book is lightyears ahead of anything I've seen." The book is not written by an armchair theoretician, but by an actual practitioner who has successfully maintained a system on his own private residence, as the only source of potable water, for several years. The book also demonstrates how private rainwater harvesting stimulates real water conservation, as opposed to the futile efforts of governments and public utilities.

Rainwater Harvesting for Drylands and Beyond, Volume 2, 2nd Edition is a how-to guide enabling you to “plant the rain” by creating water-harvesting “earthworks” or “rain gardens.” Earthworks are simple, inexpensive strategies and landforms that passively harvest multiple sources of free on-site water including rainfall, stormwater runoff, air conditioning condensate, and greywater within “living tanks” of soil and vegetation. The plants then pump the water back out in the form of beauty, food, shelter, wildlife habitat, timber and forage, while controlling erosion, reducing down-stream flooding, dropping utility costs, increasing soil fertility, enhancing the soil carbon sponge, recharging groundwater and springs, and improving water and air quality. This dramatically revised and expanded full-color second edition builds on the information in Volume 1 by showing you how to turn your yard, school, business, park, ranch, and neighborhood into lively, regenerative producers of resources. Conditions at home will improve as you simultaneously enrich the ecosystem and inspire the surrounding community. Learn to select, place, size, construct, and plant your chosen earthworks. All is made easier and more effective by the illustrations of natural patterns of water and sediment flow with which you can collaborate or mimic. Detailed step-by-step instructions with over 550 images and expanded water-harvesting principles or guidelines show you how to do it, and plentiful stories of success motivate you so you will do it!