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RedR TSS

Not sure Practical Action Publishing would agree that Gravity Flow Water Systems is out of print, see: https://developmentbookshop.com/handbook-of-gravity-flow-water-systems-pb Best reference I know however for hydraulic ram pumps is: https://developmentbookshop.com/water-lifting-devices.html The great strength of the latter book is that the authors are not advocating any one system, simply outlining the advantages and disadvantages of each to inform decisions. I would be happy to scan and share relevant pages if publishers would give RedR permission. Best

Tim

Unfortunately we cannot give permission from the publishers but we hope the links provide useful.

REDR Tss/Knowledgepoint Volunteer Pauline