Even downloaded quick time to watch it, not jerky at all but a very good video.
OK not criticism just a couple of tiny points I noticed, that if I was a customer viewing it, I would have wanted to see the TDS reading of the pure water the same way you showed the tap water, I clearly seen the TDS of the tap water but the pure if you don't know what figure your looking for then the pure demo is meaningless.
My second point? Although it could well be the graphics of my PC but the time lapse at the finish, I could quite clearly see the difference between the 2 windows, the pure window still looked a little grainy but please no one come back and start moaning I did say it could well be my PC.
Apart from the little pointers for you to look at again, I really did think it is an excellent video and even as it is I would be more than happy to show that on my website.
E&OE