Basically what is different is that my product has extra innovations to make the product better at self-cleaning and filtering waste. These extra innovations are an under-gravel filter, small particle settling and capture system, fertilizer capture and release system, as well as an aerated solid waste degradation area to provide extra nutrients to the plants and keep the system clean.
I do not know all the components or mechanisms involved with the 'other' system, I can only infer what parts are their from watching their video. From what I can gather, it seems that their design is very similar to the design I was using over 9 months ago, but I ended up adding more parts to create a more sustainable and better working system for the customer. These extra innovations took considerably longer to develop, which is why I am only releasing this product now. It is simply a case of bad luck that the other system was released such a short time before mine.