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Kay Davey
Kay's public data
A guide to sanitation selection
Kay Davey
2019-05-02T13:53:58Z
Willingness to pay 02
Kay Davey
2019-05-02T11:34:30Z
Willingness to pay 03
Kay Davey
2019-05-02T11:34:25Z
Willingness to pay 04
Kay Davey
2019-05-02T11:34:20Z
Willingness to pay 01
Kay Davey
2019-05-02T11:34:11Z
Roller bars on a well to protect ropes from abrasion - colour
Kay Davey
2019-05-02T11:34:06Z
Improvements to a simple well
Kay Davey
2019-05-02T11:34:01Z
Improvement to simple wells
Kay Davey
2019-05-02T11:33:57Z
Windlass with users instructions
Kay Davey
2019-05-02T11:33:51Z
Buried well
Kay Davey
2019-05-02T11:33:46Z
Cost of shallow hand-dug and hand-augered boreholes
Kay Davey
2019-05-02T11:33:36Z
Roller bars on a well to protect ropes from abrasion
Kay Davey
2019-05-02T11:33:29Z
Upgraded well with handpump
Kay Davey
2019-05-02T11:33:22Z
Lining as excavation proceeds using caissons
Kay Davey
2019-05-02T11:33:13Z
Well excavation supported by the modified Chicago method
Kay Davey
2019-05-02T11:33:09Z
Backfilled well
Kay Davey
2019-05-02T11:33:04Z
Tapered shutters used for pre-cast reinforced mortar rings
Kay Davey
2019-05-02T11:32:59Z
Rope and washer pump being used for de-watering a well excavation
Kay Davey
2019-05-02T11:32:53Z
Suggested digging techniques for hand-dug wells in different strata
Kay Davey
2019-05-02T11:32:47Z
Lining in the sections as excavation proceeds
Kay Davey
2019-05-02T11:32:43Z
figure
Lining in short sections has excavation progresses
Kay Davey
2019-05-02T11:32:38Z
Cross-section of upgraded well with handpump
Kay Davey
2019-05-02T11:32:34Z
Cross-section of upgraded well
Kay Davey
2019-05-02T11:32:30Z
Handpump being used for de-watering a well excavation
Kay Davey
2019-05-02T11:32:26Z
Good features of open wells
Kay Davey
2019-05-02T11:32:21Z
Protected well with double bucket system
Kay Davey
2019-05-02T11:32:16Z
Well with windlass and bucket and cover v1
Kay Davey
2019-05-02T11:32:09Z
Well with windlass and bucket and cover v2
Kay Davey
2019-05-02T11:32:04Z
Protected well with double bucket system - colour
Kay Davey
2019-05-02T11:31:58Z
Well with low section of wall - colour
Kay Davey
2019-05-02T11:31:54Z
Cross-section of a gravity well
Kay Davey
2019-05-02T11:31:49Z
Steps for disinfection of wells
Kay Davey
2019-05-02T11:31:45Z
A simple Shaduf
Kay Davey
2019-05-02T11:31:41Z
Well with submersible pump
Kay Davey
2019-05-02T11:31:36Z
Distance of well from a river
Kay Davey
2019-05-02T11:31:30Z
Distance from well to septic tank
Kay Davey
2019-05-02T11:31:26Z
A chlorinator
Kay Davey
2019-05-02T11:31:20Z
Well dimensions 1
Kay Davey
2019-05-02T11:31:15Z
Tank and well
Kay Davey
2019-05-02T11:31:11Z
Well dimensions 2
Kay Davey
2019-05-02T11:31:04Z
