We now have electricity at False Bluff, but past experience with water pumps and having lived from time to time with the frequent electric outages in nearby Bluefields - to say nothing of the outages we expect along the brand new coastal lines for the next few years - I made a trip to a couple of Managua's many solar equipment stores to scope out their water pumping systems.
Solar powered watering systems have long been a staple in the United States and the reliability of such systems speaks for itself.
The best selection and service was from Tecnosol from whom I was emailed a 10-page proposal with specifications and prices. Hands-down the place of choice.
Shown below are a couple of the pumps that Tecnosol offers.