Whatever you want, just don’t dive it! The red bag suggests that it is no longer suitable for diving. We only return it so that you can see the parts that were replaced.
When we ship/hand your equipment back there are a few things handed back in the bag/box. We attach your itemized invoice to your service ticket. The invoice includes a quantitative breakdown including the price for service by the technicians, all the service kits, and any extra parts that were needed for service. It also includes any notes taken by the technician regarding the stage of the regulator, anything noticed during servicing, or anything that had to be replaced for proper function. We also attach a ‘used parts’ bag to each regulator set with all of the items that had been replaced during service.
Throw them away. These are generally o-rings, springs, or other items that experience wear and tear with the usual usage. These are the items that are a part of the service kits provided by the manufacturer. The manufacturer has deemed these items as needing to be replaced within their time frame and we’ll always replace all items in the manufacturer service kits. The bags will include any parts beyond standard manufacturer kits that needed to be replaced. These bags are sent back simply for you to see what was done. It’s not useful beyond that point and can be discarded.