I can't speak from experience as I'm 1 week away from filling my pool (PebbleTek gets put in on Thursday) but the start-up plan from our PB has them coming out to do an "acid startup" right after we fill it and we need to brush it for 7-10 days (after 5 days they want us to start bringing the PH up). The part that struck me as being the oddest is that they will not start the equipment until after the wash is complete.

Don't know if it's a valid concern or if it's even the correct procedure (or could just be because it's a pebble finish) but I don't know if starting the equipment was a good idea or not.