It can have different impacts, depending the society and the kind of projects, I think YOURS is very interesting and I wish you the best, but while some can be a good option, some can not be so good, I think it depends what people can perceive with every project: http://www.slideshare.net/SherwoodWoodieNeiss/crowdfunding-sxsw or this: http://crowdfundingdownunder.com/2013/03/21/the-trust-paradox/
I like the project but I think that you should provide more information. What village (link from google earth). Exact location and piping system. Planning of installation. Feedback and follow up on the installation (pictures). I think that the more specific and the more concrete and transparent will be this project and the more people will be willing to donate because they will be reassure. And if you succeed for one project will all the online documentation then those that gave will be willing to give more and me the first.