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Maybe you could explain in more detail what you need the measurement for?

Water for People in Uganda has experimented with regular turbine water meters attached to India Mark2/U2 in a PPP project for "investors" to be able to control the amount of water sold by the pump caretaker when collecting the money from them. It seemed to have worked relatively well. You can download some reports on this here:

https://www.uwasnet.org/Elgg/file/view/6475/water-as-a-business-brochure

https://www.uwasnet.org/Elgg/file/view/6474/metered-hand-pumps-privately-operated-hand-pumps-as-a-way-to-improve-sustainability-and-service-delivery

I have also experimented with magnetic, non-moving parts, flow meters some years ago but they seem to have issues with very low flows and ones that are very uneven as in the case of hand-pumps. In addition they are probably too expensive anyways ;)

Last but not least there is a very interesting pilot being done for indirectly measuring flow by having a movement sensor in the pump handle. It's of course not as precise, but depending on what you want to know, it might even be better, see: https://oxwater.co.uk/#/smart-handpumps/

Last but not least: please think well about including any sort of on-side payments for hand-pumps as this usually only results in people getting (part of) their water from other unsafe sources, which should not be the intended outcome as much as I can also understand the need for cost recovery for doing maintenance.

Maybe you could explain in more detail what you need the measurement for?

Water for People in Uganda has experimented with regular turbine water meters attached to India Mark2/U2 in a PPP project for "investors" to be able to control the amount of water sold by the pump caretaker when collecting the money from them. It seemed to have worked relatively well. You can download some reports on this here:

https://www.uwasnet.org/Elgg/file/view/6475/water-as-a-business-brochure

https://www.uwasnet.org/Elgg/file/view/6474/metered-hand-pumps-privately-operated-hand-pumps-as-a-way-to-improve-sustainability-and-service-delivery

I have also experimented with magnetic, electric non-moving parts, parts flow meters some years ago but they seem to have issues with very low flows and ones flows that are very uneven as in the case of hand-pumps. In addition they are probably too expensive anyways ;)

Last but not least there is a very interesting pilot being done for indirectly measuring flow by having a movement sensor in the pump handle. It's of course not as precise, but depending on what you want to know, it might even be better, see: https://oxwater.co.uk/#/smart-handpumps/

Last but not least: please think well about including any sort of on-side payments for hand-pumps as this usually only results in people getting (part of) their water from other unsafe sources, which should not be the intended outcome as much as I can also understand the need for cost recovery for doing maintenance.