Stirling engine water pump

Several people have asked whether my little Stirling engine can pump water so I'm posting this video to show that it can. The video was taken over a year ago and is not the best but it does show that the engine can lift at least 2 liters of water per minute to about a meter high. This is using a very simple inefficient inertia pump that has just one check valve at the bottom, and the water is traveling through 50 feet of garden hose. I'm sure if I had a decent pump matched to the engine that it could put out much more than this, but at least it shows the possibility. If anyone knows of a better little pump that might work for this purpose please let me know. Thanks!