Hey everyone, what does everyone think of the pro aqua? A friend of mine got a demonstration of it and said they would have bought it if they could have afforded it. Is it as good as the rainbow or sirena? I know water filtration is good, but here's one issue I think I may have with it. If you vacuum up hair or other substances, I would think that even after dumping the water, you're still going to have debree in the pan that you will need to clean out. Where as with bagged vacuums, you just remove the bag and toss it. So, it sounds like the water based vacuums still require a bit of extra work to maintain them compared to bagged models.