Interesting question you have there. I have a dryer like that, but although the water is sort of "clean" (as in condensed) I do see lots of lint in the water after every use. But I don`t know if you have a self cleaning dryer like mine, or one that you manually have to take the condenser out and rinse manually it in a bucket full of water (like I had to do in my old one) I had some lint in the water then too.
But as DeeAnna mentioned, if you could filter and clean it etc, that would of course make a difference. If that is an effort you are willing to make + invest in disinfectant and doing the labour instead of buying distilled water that is ready to go, then that is all up to you, and if it works for you then that is great!
Which is the beauty of soaping, because you can test out so many things and see waht works for you and what doesn`t.
Besides, there are areas in the world has a shortage of water, so if it works out for you it wouldn`t exactly hurt.
Let us know how it works out if you decide to go with it, we love experiments in here...:mrgreen: