Changes

Accessible - Pump Handles

2,217 bytes added, 23:49, 28 January 2015

Published from sandbox

{|
|style="vertical-align:top"|[[Image:pump_handles1.png|thumb|left|180px|]]

|style="vertical-align:top"|[[Image:pump_handles2.png|thumb|left|280px|]]

|style="vertical-align:top"|[[Image:pump_handles3.png|thumb|left|170px|]]
|}

{| style="border: 2px solid #DB87C9;"
|<font size="3">'''Suitable for:''' Users with limited strength or grip.</font>
|}


{|border="1" cellspacing="0" cellpadding="7"
|width="20%"|'''Construction'''
|width="20%"|'''Advantages '''
|width="20%"|'''Disadvantages'''
|width="20%"|'''Improvements / variations'''
|width="20%"|'''Cost / labour'''
|-
|style="background-color: #EDEDED;"|Bent T-bar with tube which slips over the end of a standard pump handle. A screw keeps it in place
|
* Provides extra leverage which makes pumping easier
* Provides choice of position to operate handle from: front or side
|Might invalidate pump warranty
|
|Medium
|-
|style="background-color: #EDEDED;"|Prototype of adapted pump handle being trialled in conjunction with a concrete seat
|
* Can be operated from either side or the front, according to user preference
* Seat is located to one side, so as not to obstruct standing users
|
* Much heavier than standard handle
* Handle not liked by community who feared children could be hit on the head
|Based on testing with local users, this handle has been rejected in favour of the P-handle below (but is included for interest).
|High
|-
|style="background-color: #EDEDED;"|P-handle with a hollow pipe that slides over the end of India MK II pump handle and is kept in place with screws
|
* A completely new handle is not needed
* Local artisans can be trained to make P-handle
* Can be operated from the side or front according to user preference
|
* India Mk II handles vary, so artisans must be trained to tailor adaptation to handle dimensions
* Not applicable to other handpumps, e.g. Afridev
|CAD drawing of the P-handle:<br>
[[Image:p-handle.png|100px]]
|Initially high (training required); subsequently medium
|}


===Acknowledgements===
* Content and images: [http://www.wateraid.org/what-we-do/our-approach/research-and-publications/view-publication?id=aff6d098-00f2-42e5-b9a0-22ec2b264a5e Compendium of accessible WASH technologies] WaterAid.

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Winona

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