According to Taylor, you'll be able to find this tool in stores, and it's also sold online by Amazon. If you can't wait that long, then use a nylon brush, but make sure to do this only when the grill is cold. Another option is the $15 Sumpri Grill Brush and Scraper. It's made out of stainless steel and is bristle-free, too. While I haven't used it personally, it appears to be popular with Amazon shoppers.
To achieve a crust on the outside while keeping the interior of the steak cooked to your liking, you need to have two different temperatures set on your grill. In order to get those nice grill marks, you need to heat your grill to high heat to essentially sear the steaks. To determine the heat is hot enough, you should be able to hold your hand about an inch over the grill grate for 1 second before it feels too hot and you must pull it away.
If you've purchased a new Weber grill, the company says that seasoning the cast iron grates isn't necessary. A porcelain enamel coating is already added to the cast iron so you don't need to season it at all. Instead, they recommend that when using a grill for the first time, you turn up the heat for about 15 minutes, then brush it clean with a stainless steel bristle brush.
Check the fuel lines for invisible openings. Create a mixture of soap and water. Make sure you stir the mixture around so it gets really sudsy. Then, use a paintbrush to brush the soapy mixture onto the fuel lines. Turn on the gas, and brush some more soapy water onto the gas lines. If any bubbles form on the gas lines, that indicates a gas leak. Immediately replace any fuel lines that exhibit signs of a gas leak.