After a very a very large amount of rain (15″ in a week) I went out to check the ram pump and found that the water had moved the pump and also half the rocks in the creek.
The pump is back up and running without any issues. This is a good test of the strength of the pump. I would have to say that it is tough.
Check out the ebook on how to make a hydraulic ram pump on the land to house site: