Originally Posted by Eyal_Shahar
Exactly. I called Ski-Pass yesterday. Daniel told me that there is no need for extra wax, that the skis are pre-waxed by the manufacturer.
The wax from the manufacturer not intended to substitute for a genuine wax job but is applied largely for cosmetic reasons and to inhibit rust from developing on ski edges prior to sale. It likely will not last one full run.
Since its summer, I would buy a decent ski iron and some ski specific base prep wax (or any soft ski wax will do). Hot scrape a few times to get the contaminants from the factory stone grind out. Next apply a thick coat of a similarly soft wax and let sit without scraping until next season.
As the season approaches, scrape and apply the wax appropriate to the conditions you will be skiing in. There is a "sticky" at the top of the Tuning and Maintenance forum that will give you all the details you will need for waxing your skis and checking your bases for flatness.
There are a few other items that you may need like a ski vice, plastic scraper and so forth. However, waxing your own skis will save a lot of money over time and the job you do yourself will probably be a lot better than what most shops have time to do when things get busy. Plus, it's a kind of pleasant activity in a mindless sort of way and will make your skis perform better.