justin_o_guy2
Serious Thumper
Offline
What happened?
Posts: 55279
East Texas, 1/2 dallas/la.
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Of course, Verslagen is dead on. If theres a leak in the inner wall, blowing concentrated Hot air on the outter wall, it just Might eat it up. I have no inner wall on mine, I gutted my header pipe, no corrosion issues, but yea, its a thin pipe, SO, IF the header inners arent gonna make you replace the header, then get some Ospho, its a dilute phosphoric acid, available at Kelly Moore paints, dont get the gel, its nasty..I have a quart I keep around & wipe stuff down, kills rust, it is no loner iron oxide, its a black, Iron phosphate, Ive been using it for years,Good stuff.
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