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ProSolv FAQ

The System:
Does Prosolv work on all propane cylinders? Prosolv is designed to remove the sealing sleeve and internal valve stem from the small 1 pound propane, propylene, mapp, and calibration cylinders that have an EXTERNAL thread.
How long does it take to process a propane canister with Prosolv? If the propane canister registers in the GREEN, then removal of the sealing sleeve and valve stem will only take 1-2 minutes. Download Manual
The canister is empty, but the valve stem is stuck. What now? Check first that the sealing sleeve is clear from the Prosolv pin. Follow the steps again to remove the valve stem, and pull out with needle knose pliers. If that does not work, utilize the Prosolv Overfill Valve Removal Tool on the completely empty canister. Please contact Customer Service for more details.
How does the filter work? The activated carbon adsorbs hydrocarbons and removes odor from the gas. It effectively reduces VOC's from the escaping gas, resulting intotal hydrocarbon emissions 75% less than the 300 ppm desired limitations.
When does the filter need to be changed? Change the filter after processing 40 canisters. Once all 40 recycling certification tags are used, it's time for a new filter.
The Rules:
Are spent propane cylinders considered hazardous waste? No, spent canisters with the recycling certification tag inserted are considered empty and are exempt from regulation under 40 CFR 261.6(a) (3) (iv). Scrap metal that is recycled is exmpt from RCRA regulation under this provision, so generators need to not make a hazardous waste determination.
Does the process require any permitting from the Air Quality Control Board? No, permitting is only required when processing 15 pounds or more per day, which is not the case with the Prosolv system. Permitting generally applies to gas-filling facilities: welding gases, large gas cyclinders, etc.
Why is the anti-static wire necessary? In many cases, there is an OSHA requirement for grounding of "vessels" to prevent any build-up of the static electricity being transferred to the system. The Prosolv sytem is non-powered, and itself is not capable of generating a static charge.
What are metal certification tags for? Insert the tag into the open valve after processing to gurantee recycling and pickup. The tag proves the valve stem was removed, and it is a certified empty canister.
Can I order more recycling certification tags? Tags are not sold seperately. Each Prosolv filter comes equipped with 40 tags.
Can Prosolv be used to recycle canisters that contain oxygen? Often times oxygen bottles will have a left hand thread and will not fit the Prosolv receiver. If the oxygen bottle has a right hand thread  'remove' the carbon filter and process as you would normally.
How should the carbon filters be disposed? Due to the variety of chemicals used in aerosol cans, some of which are hazardous, fully saturated carbon filters should be considered hazardous waste—unless independently tested to the EPA's guidelines and is proven non-hazardous. Please dispose of in accordance to local, state, and Federal laws and check with authorities having jurisdiction.