this is the final installment in this nightmare...…….took tank to local radiator shop they put in acid bath and got the redkote out and silver soldered the seam...tank sprung 2 more leaks under pressure...but...…..when I went to get it the thing had two big dents. one in front and one at rear..shop owner said he didn't know how they got there (must have been fairies) he said bondo would fix...also tank was splayed out and bulged like balloon....he said I owed $100 for the repair.....I lost it....flew into frustrated rage and slammed tank on shop floor..twice...lesson learned...don't try to skimp a few bucks on tank..get more expensive better one to start with....end of story.