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A Handbook of Gravity-flow Water Systems Paperback – 15 Dec 1980

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4.4 out of 5 stars 7 reviews from Amazon.com us-flag |

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Amazon.com: 4.4 out of 5 stars 7 reviews
5.0 out of 5 stars Very clear introduction to gravity-fed water systems for communities 6 Nov. 2016
By Richard F. Rogers III - Published on Amazon.com
Format: Paperback Verified Purchase
This book provides the essentials for designing small-scale drinking water systems flowing by gravity. The text emphasizes community water systems involving pressurized water conduits in the developing world. Although the level of detail does get down to amounts of building materials, this might not be the best resource for a do-it-yourself system in the US. The original context of the book was rural Nepal, where building materials were limited and low-cost solutions were at a premium. Ace Hardware and Home Depot would probably give you many more options to consider.
Regardless, there is quite a bit of useful information, especially for engineers. I wish I had stumbled across this book three years ago, before teaching a course on environmental engineering for the developing world. Our course could have benefited from the simple yet compelling approach used to design the main line. Thorough coverage of demand estimation, break pressure tanks, and removing trapped air from the pipeline are included. Detailed drawings, clear explanations of components like control valves, and extended example problems make this a valuable book. The appendix also contains some theory of pipe flow, including the energy equation and the hydraulic grade line.
Two small drawbacks are that there is not an example of a branched system (or a looped system) despite some discussion, and that the head loss tables for high-density polyethylene pipe have values that do not agree with the design examples. I suspect that updated values were added to the appendix after the examples in the text had been completed.
5.0 out of 5 stars Very Useful and Easy to Read 19 Dec. 2013
By Jorge O. Flores Jr. - Published on Amazon.com
Format: Paperback Verified Purchase
I have used this and a few other books for a project I am working on to design and construct a water system to deliver clean water to local community in Honduras. It is very helpful. I used this along with "How to Design a Gravity Flow Water System" by Santiago Arnalich and "Water Storage: Tanks, Cisterns, Aquifers, and Ponds for Domestic Supply..." by Art Ludwig. These really made the process much easier from a technical standpoint. It definitely helped the overall thinking process. I do recommend them.
3 of 3 people found the following review helpful
5.0 out of 5 stars This is the book 20 Feb. 2009
By Leitz - Published on Amazon.com
Format: Paperback Verified Purchase
This is a text book written with the functionality of a detailed work pack. The 5 star ratings are all earned. If you are involved in any aspect of water supply and sanitation - buy it. It is like a classic engineering text that pursues it's topic from theory to design to cost and time estimating to construction and maintenance. And it doesn't cost $300!
2 of 2 people found the following review helpful
5.0 out of 5 stars A bible for small gravity fed water systems 26 Jun. 2009
By Frere - Published on Amazon.com
Format: Paperback
I've had this book with me all along the five years I worked in designing and building small gravity-fed water systems in Asia and the Balkans. Although it was written for the Nepali & Himalayan context, it remains a world reference in this field.
For designing a distribution network, I recommend a primitive but efficient software from the 80's developed by the World Bank and called "Branch". It selects pipe diameters and calculates the cheapest design from a price list of tubes you provide. Neat! [...]
For topographic surveying, I used a theodolite, which is much faster and preciser than an Abney level. The skills needed are much harder to teach though... A cheap transit will do the job of a professional theodolite for a fraction of the price. [...]
1 of 2 people found the following review helpful
2.0 out of 5 stars A good book back in 1980, not so much now 31 Aug. 2012
By Dt k - Published on Amazon.com
Format: Paperback
This book is over 30 year old. It is written on a typewriter typeface just to give you an idea of how out of date it is in regards to improvements in technology or development issues like gender.

Although a bible for its time and used in many projects, it has failed to be updated to the new times and challenges. It leaves out very important matters like community participation, selection of materials, GPS, Google Earth or the use of spreadsheets or simple computer programs for that matter

I was excited when the second edition was released only to discover that only minor adjustments were included.
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