[Vivid-Dawn]

Okay, so here's another question, since it seems to have so many different opinions in my research:
Can I use tap water?
I can't afford a RO/DI (at least for now...maybe I can get one for Christmas!). I was planning on putting tap water in a bucket with a dose of AmQuel and NovAqua, and letting it sit with an aerator for a day, then add salt to the proper level, let it sit for another day, and then add it.
I could use distilled water from the store (Wal-Mart has it for under a dollar a gallon), but I've heard that's not much better than treated tap water.

What do you guys think?
For top-off water due to evaporation, I'd use the same method, just without the salt part.