For CO2 tanks:
1. Hydro Date (does not apply to small tanks exempt from hydrotesting).
2. A brief description of its condition. You MUST diclose any safety problems you have had with the tank (such as the brass valve coming unscrewed from the tank) and measures you have taken to correct it (normally, fixing it yourself is not safe. Playing airsmith is playing god with someone's life). If the tank is noticeably dented or has any damage to the pressure cylinder other than scratches / loss of paint, DO NOT SELL IT! If in doubt, ask the local Pro Shop.
3. Photos are helpful, but not required.
For HPA tanks:
1. Hydro Date and the hydro period (either 3 years or 5 years).
2. The cylinder manufacturer and the DOT code or its equivalent certification code in your country. This is visible on the tank's label. This is necessary to allow buyers to check for recalls and any updates to the hydro period (a number of tanks were recently upgraded from a 3-year hydro to a 5-year hydro).
3. The material it is made of (aluminum, carbon fiber, or steel).
4. A description of its condition. You must report any potential safety problems you have encountered (such as the regulator coming off) and what you have had done to correct it (Repeat after me: playing airsmith is playing god with someone's life. An unsafe tank can KILL). Remember that pretty much any damage to a high pressure cylinder renders it unsafe and requires it to be condemned. Anything like dents, frayed carbon fiber, or damage to the surface glaze deep enough to expose the carbon fiber will generally get a tank condemned. Do not buy or sell any such damaged tanks. If in doubt, ask the local Pro Shop.
5. A photograph of the tank. Ideally, this would include the label. Let's face it: no one is going to pay $100+ for a sight-unseen tank that could potentially turn into a bomb if improperly cared for.
It is the responsibility of the SELLER to provide all applicable information.
It is the responsibility of the BUYER to ASK for this information if it is not provided.
You are strongly encouraged to read user reviews on any air system you are considering purchasing, as there have been a few air systems that were dangerous but not recalled.
Special Ops Paintball and forum staff have no control over and are not responsible for the safety and condition of any personal items being sold on this forum. It is your responsibility alone to ensure the items you sell and buy are legal and safe.
This post has been edited by WardenWolf: 05 May 2008 - 11:25 PM