So I started the rust removal process today. To the right you can see the tools used for the task. I bought some stuff called Evapo-Rust, it's essentially phosphoric acid and came in a 32 ounce bottle. I poured about half of the bottle in the tank with a full 4000 pack of .177 caliber BB's. Then its just a process of shaking and rotating the tank for about an hour. I saw several different homemade setups on the Internet people came up with for agitating their tanks, including one guy who blocked up the drive wheels on his snow blower and then strapped the tank to one of the wheels and just let the snow blower run.
After about an hour of sloshing and shaking I poured out the Evapo-Rust and flushed the tank with high pressure water. It was just shy of mud that came out of the tank at first, I let the water run till it flowed clear. None of the BB's came out, that parts gonna be a chore I'm sure. After pouring out as much water as possible I poured the rest of the Evapo-Rust in the tank and started the process again. I'm going to let the solution sit over night tonight and begin the prep process for using the POR 15 tank repair kit tomorrow.
So I started the rust removal process today. To the right you can see the tools used for the task. I bought some stuff called Evapo-Rust, it's essentially phosphoric acid and came in a 32 ounce bottle. I poured about half of the bottle in the tank with a full 4000 pack of .177 caliber BB's. Then its just a process of shaking and rotating the tank for about an hour. I saw several different homemade setups on the Internet people came up with for agitating their tanks, including one guy who blocked up the drive wheels on his snow blower and then strapped the tank to one of the wheels and just let the snow blower run.
After about an hour of sloshing and shaking I poured out the Evapo-Rust and flushed the tank with high pressure water. It was just shy of mud that came out of the tank at first, I let the water run till it flowed clear. None of the BB's came out, that parts gonna be a chore I'm sure. After pouring out as much water as possible I poured the rest of the Evapo-Rust in the tank and started the process again. I'm going to let the solution sit over night tonight and begin the prep process for using the POR 15 tank repair kit tomorrow.
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