Where can I purchase a shallow water hand pump in Haiti?

Does anyone know of a place to purchase a shallow water hand pump in Haiti. I am working on a drinking water project in St Louis de Norde. I would prefer to purchase the pump somewhere near port au prince or Gonaives.

I will be using the pump to get water out of a cistern that is capturing rainwater. I would like the pump to be durable.

Thanks for your kindness. Harris