Hydraulic ram pumps and Sling Pumps

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Key Factors for Sustainable Cost RecoveryBALANCE SHEETASSETS LIABILITIESCASHCash ProvidersBanking account ContractorsDEBTS SubsidyOutstanding bills OtherOthers STAFF COSTINVENTORY Salaries and social securityRaw materialsSpare parts and tools TOTAL LIABILITIESBUILDINGS, SCHEME ANDEQUIPMENTLandBuildings PATRIMONYTreatment plant Capital investmentPipe lines Accumulated profitMachinery Profit over periodEquipment ValuationFurniture TOTAL PATRIMONYComputersDepreciation (cr)TOTAL ASSETS TOTAL LIABILITIES ANDPATRIMONY63
OP 32-EAnnex 6: Example of a behaviour studyThis study was developed in two stages. In 1988, families in Kerala State in India were surveyed abouttheir willingness to pay for household connections to a piped water supply system and to establishfuture trends in their behaviour, using the Contingent Valuation Method. In 1991, the same familieswere surveyed again, observing their actual behaviour, to see if they behaved as they said they would(benefit revelation), and to ascertain the accuracy of the predictions.1988 study: contingent valuationIn both A and B communities, households were asked about their willingness to pay if the reliability ofthe service was improved. The bidding game was used to estimate WTP of the head of the household.The results were:• Monthly tariff and connection costs were determinants of WTP. An increase of 10 rupee in themonthly tariff would cause a fall of 27% in the probability that a family would connect: while thesame increase in the connection cost would cause a probability decline of 82%.• The decision to connect had a positive correlation with high income levels, assets and schooling.• Families living in water scarce zones were probably more willing to connect than those living inwater abundant zones• A more reliable service was an important factor for those who were connected at the time of thesurvey. It was not an issue for those who were not connected.1991 study: actual behaviourThis study tried to re-survey the same families of the 1988 study. There was a sample change bywhich they lost 25 of 200 households in B communities. However, the change affected all incomegroups equally, and the survey retained the original income distribution. Criteria used to establish thevalidity of predictions were:• The right proportion of connectors, without considering if the behaviour of the families wasaccurately described• Analysis of whether families behaved as they said they would, considering three elements:1) the proportion of the sample whose actual behaviour was correctly predicted (gross accuracy),2) the proportion of those families who connected, whose decision was correctly predicted(specificity),3) the proportion of families who said would not connect, and did not (sensitivity).To answer to these questions the authors of the study compared the results of both 1988 and 1991studies. The most important results were:• 14.9% of the families did connect (22/148), while the authors’ predictions said that 14.2 % of thefamilies would connect. The prediction was accurate.• 91% of the families ((15+120)/148) behaved as they said they would (gross accuracy).• The percentage of those predicted to connect who actually did connect was 71% (15/22)(specificity).• 94% of those predicted not to connect (120/127) did not connect (sensitivity).• 75% of non-connectors indicated inability to pay the connection cost as the first reason for notconnecting. The authors predicted in 1988 that this would be the most important reason for nonconnectors.• All the families who had connected in 1991 were dissatisfied with the reliability of the system,while only 13% of non-connectors gave this as a reason for their decision not to connect.Benefit TransferThe study tried to predict the behaviour of the families in type B communities in water scarce zones byusing behavioural models to extrapolate from results in type A communities with the same problem(water scarcity). Although the communities are similar the results were disappointing, and the use ofbehavioural models to predict behaviour in B communities gave completely inaccurate results. Forexample, authors predicted that 76% of families in sites B would connect while only 16.6% of them64
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Hydraulic ram pumps and Sling Pumps
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Hydraulic ram pumps and Sling Pumps
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Use a hydraulic ram pump to continu
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Use a hydraulic ram pump to continu
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Designing a Hydraulic Ram PumpL = T
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Designing a Hydraulic Ram PumpTable
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CAT Publications at www.ecobooks.co
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Atlas Publications-inexpensive how-
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The Development Technology UnitAnim
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Home-made Hydraulic Ram PumpHome-ma
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Home-made Hydraulic Ram Pumpturn it
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Home-made Hydraulic Ram Pumpthe wat
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Home-made Hydraulic Ram Pumphydraul
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Hydraulic Ram Pump6. The length of
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Hydraulic Ram PumpHydram Size 1 2 3
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Hydraulic Ram PumpTable 3 can now b
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Real Goods Catalog - Library & Offi
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Hydraulic Ram Pumps EBAE 161-92Prin
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Hydraulic Ram Pumps EBAE 161-92upon
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Hydraulic Ram Pumps EBAE 161-92Hydr
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Hydraulic Ram Pumps EBAE 161-923. D
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Hydraulic Ram Pump System Design an
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Picture GallerySearch the web with
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Ram Pump (from Internet Glossary of
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Motorless Water Pump--Gravi-Chekhtt
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AEE Renewable Energy SupersourcePut
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Aquatic Eco-Systems - Aquaculture S
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Real Goods - Folk Ram Pumps
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Sling Pump (from Internet Glossary
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Sling Pump (from Internet Glossary
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Table of ContentsIntroduction _____
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and limited access configurations.F
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Ram PumpsRam pumps are very simpleh
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Nose Pumpsentire pump body.The pump
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Table 2 - Installation Consideratio
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Livestock WateringUSING STREAM-POWE
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Figure 5 Sling PumpInstallation Opt
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Real Goods - Pump water from stream
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SlingpumpsRife Hydraulic Engine Mfg
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Lifewater Canada: Sponsor a WellIf
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Lifewater Canada: Who We AreAccordi
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Handpump & Drilling Resources: Pitc
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Lifewater Canada: The SolutionLifew
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Lifewater Canada: The SolutionProje
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safe water - the gift of life - giv
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Liberia communities with safe drink
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Liberia water and sanitation (watsa
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Lifewater Canada: What Lifewater Ca
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Handpumps and water well drilling t
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Lifewater Canada: Who We AreAbout L
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Lifewater Canada: You Can Help!and
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Lifewater Canada: You Can Help!bein
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Lifewater Canada: Contact Informati
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Lifewater Canada: Contact Informati
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Lifewater Canada: Links to Other Si
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Lifewater Canada: What's New on Our
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Lifewater Canada: Site Map●●●
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Dirty Water: Estimated Deaths from
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Global water supply and sanitation
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Global water supply and sanitation
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WaterAidWaterAid is an internationa
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Access to a regular supply of safe
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Regardless of their available resou
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MONITORING HUMAN RIGHTSTreaty:Inter
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WELL - Resource Centre Network for
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War and waterAbout the ICRC | ICRC
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WaterAidText only | font | Sitemap
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Lifewater Canada: Drinking water we
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Lifewater Canada: Overseas Travel P
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Lifewater Canada: Overseas Travel P
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Lifewater Drilling & Well Construct
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Appendix F: Lifewater Canada Well R
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Appendix F: Lifewater Canada Well R
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Appendix R: Community Water Supply
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Appendix T: Making safe drinking wa
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Well Water Level and TDS SensorQuan
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Well Water Level and TDS SensorR1 =
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Well Water Level and TDS SensorThe
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Well Water Level and TDS Sensor●
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Well Water Level and TDS SensorA vi
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Well Water Level and TDS Sensor"The
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Appendix H: Assessing natural clays
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Appendix I: Methods for Grouting Ca
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Section 13: Bush Handpump OverviewO
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Section 13: Bush Handpump OverviewD
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Water for the World IndexWater For
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Water for the World Index●●●
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Water for the World Index●●●O
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Water for the World Index●●●
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Afridev handpumps for safe drinking
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http://www.handpump.org/afri_pump/i
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Consallen Hand PumpsConsallenHandpu
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india mark II handpumpsE-mail: Erns
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india mark II handpumpsPatna 800001
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Kardia hand pumpKardia hand pumpMad
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Bombas de MecateHomeDevelopments In
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vergnet handpumps●use on borehole
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Rural Water Supply Network - The Ha
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Rural Water Supply Network - The Ha
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Rural Water Systems and handpumpsWa
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Hitzer, Inc: Heller-Aller Pumps© C
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homepagehttp://members.shaw.ca/lsdi
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Tara Pump DetailsTara Pump Details[
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Tara Pump DetailsSend sales related
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Grinding Mills,Deep Well Hand Pumps
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Technology Bank: International Deve
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The IDRC Library: International Dev
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NZ Pump - Shallow Well Village Pump
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SWS Rower PumpsThe SWS Rower pump i
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Boshart Industries : Hand Pumps and
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Hand Pumps - PlumbingSupply.comhand
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0243-2kstore.com, Water pumpCowboy
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Sigma K2●●It must be bolted to
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Sigma K2●See the SPECIFICATIONS s
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Sigma K2Hand operated water pumps f
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Tech Gallery - Treadle PumpFrenchSp
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T.E.MANNING, NETHERLANDS, ADVANCED
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T.E.MANNING, NETHERLANDS, ADVANCED
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New address:New address:http://s.u.
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New Page 2Since then it has been a
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HUMAN-POWEREDWATER-LIFTERSThe choic
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Human Powered Water Lifting Devices
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site has moved...This site has move
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http://depuran.mhs.ch/Forgotyourpas
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D WATER RESOURCES AND USE: SKINNER
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D WATER RESOURCES AND USE: SKINNERb
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WEDC - Conference Paperof affordabi
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WEDC - Conference PaperThe Afridev
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WEDC - Conference Paperto be kept t
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The Internet Glossary of PumpsGloss
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The Internet Glossary of PumpsCD-RO
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The Internet Glossary of PumpsKEOHP
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WWD PhotosheetsWWD home2001 HomeAbo
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Key Factors for Sustainable Cost Re
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Table of contentsAcknowledgementsvI
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AcknowledgementsSpecial thanks shou
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OP-32-EClearly, however, the concep
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OP-32-EThe BPD Report mentions also
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OP-32-E1.1.2 Findings of a study in
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OP-32-EIdeally, setting a cost reco
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OP-32-ERestoring defective schemes
Page 359 and 360: OP-32-EHowever, differences within
Page 361 and 362: OP-32-E• Option A: Immediate full
Page 363 and 364: OP-32-Eoften has a positive influen
Page 365 and 366: OP-32-EAnalysing actual habits and
Page 367 and 368: OP-32-EAdvantages and disadvantages
Page 369 and 370: OP-32-ETable 4: Community managemen
Page 371 and 372: OP-32-EPossible distribution of res
Page 373 and 374: OP-32-E2. Cost recovery in practice
Page 375 and 376: OP-32-E• Classification of tariff
Page 377 and 378: OP-32-EAdvantages and disadvantages
Page 379 and 380: OP-32-EAverage Management Cost (AMC
Page 381 and 382: OP-32-EIt should be noted that expe
Page 383 and 384: OP-32-E• Try to firmly install a
Page 385 and 386: OP-32-EPrivate capitalPrivate capit
Page 387 and 388: OP-32-EDonations from former reside
Page 389 and 390: OP-32-EBox 7: Bangladesh, the Grame
Page 391 and 392: OP-32-E2. Estimating expenditure ov
Page 393 and 394: OP-32-EMoney collected has to be ke
Page 395 and 396: OP-32-E2.4.4 Financial control and
Page 397 and 398: OP-32-Ewater must not only address
Page 399 and 400: OP-32-EAnnex 1: Example of tariff c
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Page 403 and 404: OP-32-EManagement costs. They inclu
Page 405 and 406: OP-32-EBC2 = 211 * 0.6 = 127BC3 = 2
Page 407 and 408: OP-32-EAnnex 4: Format for budgetin
Page 409: OP 32-EBANK BOOKDate Description Dr
Page 413 and 414: OP 32-EAnnex 7: BibliographyAbugre,
Page 415 and 416: OP 32-EPérez, M. (1997a). ‘Eleme
Page 417 and 418: OP 32-EWorld Bank (1999b). Allocati
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Page 429 and 430: 43. Simple drilling methodsIn many
Page 431 and 432: Simple drilling methodsJettingMetho
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Page 435 and 436: Introduction of Low Cost Rotary Dri
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Page 441 and 442: Wellspring AfricaWellspring Africa
Page 443 and 444: The "Sludger Technique" for constru
Page 445 and 446: The "Sludger Technique" for constru
Page 447 and 448: The SWS Well-Jetting TechniqueWell-
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Profile -- Cable Tool Drilling, 9/1
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Protecting Water Supply SpringsProt
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Protecting Water Supply SpringsConc
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Protecting Water Supply Springsbear
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Protecting Water Supply Springschlo
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GRAVITY VILLAGE WATER SUPPLY IN SIE
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D WATER RESOURCES AND USE: FELLINGA
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D WATER RESOURCES AND USE: FELLINGA
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SPRING PROTECTION IN UGANDASPRING P
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SPRING PROTECTION IN UGANDAtype lat
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WaterAidIn stable ground, wells are
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WaterAidA hand-dug well fitted with
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error default pageForager-200 rotar
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HAND DUG WELLS FOR VILLAGES IN UGAN
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Rainwater Reservoirs aboveGround St
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ContentPreface.....................
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this technique was no longer used.
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Table1: Rainwater reservoirs at pub
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meal a day and washing the dishes.
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2. Catchment possibilities and choi
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2.2.2 The PVC foil tankSeveral indu
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Table 4: Major materials needed for
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commonly used. Mean annual is the s
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figure 2.3The height from the groun
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Table 5: Capacity of different tank
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If sand is not taken at the site bu
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3.5 Mixing cement plasterThe correc
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4. Installation of a corrugated iro
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and if this water is considered to
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figure 5.2Table 6: Dimensions for f
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5.1.2 Preparation of reinforcementO
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this part at that side of the floor
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figure 5.125.1.6 Further procedure
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5.1.7 Plastering the tank from the
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figure 5.20Remove the plastic foil
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plastered with the first coat, cove
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figure 5.275.2 Reservoir with facto
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crossed rods with binding wire. The
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(or old engine oil) paint the outsi
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figure 5.34Remove all bolts.Remove
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Prepare the nil coat and apply it a
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5.2.15 Removing shutteringDo not re
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start wrapping the mould with mesh
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5.3.6 Roof shutteringFigs. 5.45 and
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you enlarge the hole, more water wi
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figure 5.49Repair of large holes wh
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-Choose the reservoir size accordin
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half-width of the wall is sufficien
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(Name and address of contractor) __
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All material shall be as described
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6% clay, silt, etc. Before commenci
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Cement bricksBurned clay bricks als
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Table 8: Consumption of Portlandcem
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Table 12Table 1379
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7. Gutters and downpipesThe efficie
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Appendix: Technical drawingsfigure8
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figure85
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figurefigure87
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GARNET - Global Applied Research Ne
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Sourcebook Harvested RainwaterHarve
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Sourcebook Harvested RainwaterIn th
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Sourcebook Harvested RainwaterIn th
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Sourcebook Harvested Rainwaterbolte
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Sourcebook Harvested Rainwater(800)
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Sourcebook Harvested RainwaterUnive
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H MISCELLANEOUS: DIXIT and PATIL22n
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Rainwater HarvestingRainwater Harve
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Rainwater Harvesting●●●The re
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Rainwater Harvesting●❍ clean (r
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IDRC BOOKS: Online and In Print: In
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1.3 Fog harvesting1.3 Fog harvestin
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1.3 Fog harvestingIn Chile, the Nat
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1.3 Fog harvestingSource: W. Canto
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1.3 Fog harvestingand Peru were 3.0
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1.3 Fog harvestingmeasurement devic
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1.3 Fog harvestingSource: G. Soto A
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1.3 Fog harvestingForests in Colomb
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1.3 Fog harvestingHigh Elevation Fo
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FogQuest - Fog Collection / Water H
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http://www.gvanv.com/compass/arch/v
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IDRC REPORTS: Clouds on Tap: Harves
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IDRC REPORTS: Clouds on Tap: Harves
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Water Innovations: Chile's Camancha
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Water Innovations: Chile's Camancha
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Fog Catcher PhotosBaobab:Stills and
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Fog Catcher PhotosEven in a spot as
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D WATER RESOURCES AND USE: SHIRIMAR
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62. Emergency water supplyin cold r
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Emergency water supply in cold regi
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CAT Publications at www.ecobooks.co
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F WATER QUALITY AND SUPPLY: McCONNA
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F WATER QUALITY AND SUPPLY: McCONNA
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WEDC - Conference PaperThe iron pro
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WEDC - Conference PaperMonitoring o
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Solar Water DisinfectionSoutheast A
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F WATER QUALITY AND SUPPLY: DAHI, M
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F WATER QUALITY AND SUPPLY: DAHI, M
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International Desalination Associat
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Technical Information W1edepending
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Technical Information W1eAdvantages
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Technical Information W1eSeed Distr
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WHO | Water and sanitation related
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Environmental Sanitation - IRC Inte
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WaterAidPour flush latrinesIn villa
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WaterAidThe interior of the superst
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WaterAidClick here to print all sec
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Technical Information W9eThe site f
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Technical Information W9eThe supers
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Technical Information W9eThe main d
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Technical Information W9estabilised
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School Sanitation and Hygiene Educa
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WEDC - Conference Paper20th WEDC Co
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WEDC - Conference Paperhousehold (T
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WEDC - Conference Paper(Morgan, 197
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WEDC - Conference PaperWith so many
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WHO | Water, Sanitation and HealthE
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WaterAidText only | font | Sitemap
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WaterAidtransmission route and redu
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Health and Hygiene PromotionLiverpo
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Some key objectives for hygiene pro
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Some key objectives for hygiene pro
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ECHOs Global BookstoreBestsellers01
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Welcome to the International Water
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