Board Thread:Questions and Answers/@comment-24.9.54.142-20130104045921/@comment-5885120-20130104072803

There are quite a few different ways of doing it using the most basic features in Tekkit. If you have to ask, you might want to spend some time actually learning what Tekkit has to offer. You haven't even specified any restrictions whatsoever. It could be done most easily with energy collectors and condensers.

More importantly, why exactly do you want to automate the process of making water cells? It's two steps: craft an empty cell, fill it with water.