How to empty a fire extinguisher to use as an air tank.
I bought a ABC fire extinguisher to use as an air tank and I was wondering how do you go about emptying and cleaning those things before getting them welded.
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- mattyzip77
- Sergeant 3
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Really???? Pull the pin, spray, unscrew valve, remove valve, rinse out, let dry. 

Go Bruins!!!!
rinsing wont rust the heck out of it?
Plus i heard the chemicals are bad for you in them?
Plus i heard the chemicals are bad for you in them?
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- Technician1002
- Captain
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The chemical in many can be recycled. Take it to the local fire extinguisher service place. They would love the free chem. They may even have several obsolete unservicable tanks in the metal recycle bin. Ask for a trade.
Most ABC type dry chem have a combination of Bicarb of Soda, Potassium Carbonate (Purple K) or other custom blend to prevent caking of the powder.
Most ABC type dry chem have a combination of Bicarb of Soda, Potassium Carbonate (Purple K) or other custom blend to prevent caking of the powder.
- mattyzip77
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yes, rustolium Hovever my spelling is prolly wrong....8tonsemi wrote:With non rust paint?
Go Bruins!!!!
How much do you think I'll need I bought a 5lb fire extinguisher?
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- mattyzip77
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one can is more than plenty.....
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- D_Hall
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Just a note, but PKP (Purple K) isn't exactly good for you. It's not toxic per se, but the particle size is EXTREMELY small and your body has a tough time expelling it from your lungs. So avoid breathing the stuff in.Technician1002 wrote:Most ABC type dry chem have a combination of Bicarb of Soda, Potassium Carbonate (Purple K) or other custom blend to prevent caking of the powder.