Freezing up sounds like you may have propane leaking. Please leak check the connection and hose with soapy water. You should also turn your tank off and disconnect it from the grill for about 10-15 minutes. After reattaching the tank, turn the valve only one complete rotation, do not turn until it stops. This causes frost and may also cause the valve to break off.
It is extremely important to store your spare tank properly.
1. Store it outside (NEVER in an enclosed area, such as a garage or shed)
2. NEVER keep your tank in your car trunk, if you do need to transport your tank, put it in the backseat with your windows open.
3. ALWAYS keep your tank away from a direct heat source, and NEVER keep your spare tank under or near your grill.
The best place to keep a spare tank is on your deck or the side of the house. If any gas happens to leak, it will dissipate. If your tank is exposed to the elements, it may rust a little and the tank may start to look "aged", but the gas won't go bad.
Federal regulations require that all propane tanks are fitted with an OPD (Overfill Protection Device). The OPD feature prevents accidental overfill of the cylinder. An internal float mechanism shuts off the valve when the propane tank is 80% filled. The 20% empty space is necessary to prevent the cylinder from venting large amounts of propane when the temperature rises. The OPD valve also contains another safety feature - it will not release gas unless the pigtail hose is properly connected, even with the valve open. These devices are metal, and some tanks have a more pronounced "clang" when the tank is moved around (depending on the manufacturer of the tank). Nothing is broken and the sound you hear does not have an impact on the function of your tank.
The type2 connection is only used on some Weber grills manufactured between 1999-2001. If you usually swap your tank a local hardware store or other exchange location, you have a type1, because they don't carry the special type2 valves. Ultimately, you'll need to look at your grill and see if it's a screw-on (Type1) or spring-loaded (type2) connection.
You can upgrade your tank from a Type 2 to a Type 1 for a cost of $11.99. When you order your next exchange, choose the upgrade option to upgrade your tank to a Type 1. We cannot exchange your Type 2 tanks for Type 1 tanks without the cost of the upgrade.
We are no longer able to offer propane tanks with the Type 2 (quick connect) valve. Grills and tanks with the quick connect valve have not been manufactured in over 10 years and it is becoming increasingly difficult to maintain an inventory required to service customers with this connection.
What you can do is upgrade your grill with a new hose and regulator and upgrade your tank with the new type of connection (it is a two part process). You can purchase a new hose and regulator by contacting Weber at 800-446-1071 and explain that you have a grill that has a Type II tank and you need a new hose and regulator for a Type I tank.
If you decide to upgrade your grill, you will also need to upgrade your tank. When placing an order on our web site you will be asked if your tank requires an upgrade. You will select yes, that way we will pick up your old Type II tank and deliver a Type I tank for you.