Hi Jerry,
We only knew that the pump used in the village for agriculture is a diesel-powered pump.
A quick Google search took me to this 2022 YouTube Video – How Solar Water Pumping Systems Are Helping Smallholder Farmers in Cambodia (KH). I would assume that the existing pump that was submerged in the flood is a portable one similar to what the farmers used in the video. I suggest that you take inspiration from the video I mentioned.
I hope this helps.
Regards,
Jean