I am certainly no expert and have never tried it. I have read everything from "guiness puts a drop of liquid nitrogen in each bottle/can" but I also have read that the pressure from carbonation forces the beer inside of the widget and when the bottle is opened it releases and shoots the beer...
If you bottle using a bottling bucket let it sit every time you move the the bucket before you bottle. This allows the sediment to settle and you will get less sediment in the bottles. If you move the bucket to a table then immediately bottle then you will most likely have disturbed some of...
I think you would be OK, I use sanitizer in the dishwasher with no problem. Make sure you dont put too much in, that is when you will have a problem with bubbles