To me there seems to be a simple solution to the problem of whether Mr. Ellis is running a scam or not. Test the water...before and after.
1) Read the patents (check for the link earier in this thread) so that you know what the machine is supposed to do. This will give you the background to understand what Mr. Ellis claimed in the patents.
2) Make a list of the basic claims on his website...bond angle increased permanently in the water molecules and "higher electron content" of the water. Note any of the sources of support (eg. Dr Guy Abrahams) to investigate. They may be able to provide lab results from test they have performed.
3) Get water samples from a machine that is configured properly. (Look back through this thread for the person who has the experience and is willing to help). I am sure Mr. Ellis would be willing to should an existing customer how to configure the machine properly. It's in his best interest. A happy customer is his best marketing/PR source.
4) Have a lab test the water samples (from the same source) 1)water not run through the machine and 2)water that as been processed by the machine. Test the water composition, test the bond angle, etc. The things that Mr. Ellis has said on his website can all be tested. Don't get mired down in the medical claims because they are all covered by his disclaimer that he is not a medical professional. A university/college with a strong Science departments (especially chemistry) should be able to do the testing for bond angle and water composition.
Once you see the results, you can inform people. If anyone wants to be credible you need to be able to provide the results and the methodology so that it can be peer-reviewed.
Although the debunking on http://www.chem1.com/QC is interesting it only provides a theoretical base to consider. All cutting edge Science challenges what we normally accept to be true. Mr. Ellis has positioned himself as a (cutting edge) scientist and inventor so challenge his scientific claims with science. The bond angle in water can easily be measured by a lab with the right equipment. A search of the internet will give you information on how bond angles are tested.
In reading this thread I remembered the saying (my paraphrase) "You are either part of the problem or part of the solution...it's your choice." This extends to both the dissatisfied customers and Mr. Ellis. Choose to be part of the solution.
It is evident from his adverts and website that Mr. Ellis does not have a good marketing and PR person. That's just a weakness in his business model. (If you're reading this thread Mr. Ellis...it's not that hard to find someone who can write good copy for your website and your other marketing outlets).
Remember..."the way you do something is the way you do everything" -anon-