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					Originally Posted by  francantolin
					 
				 
				Result is hopefully good but the recipe not so impressive: 
 
I use a brown world famous sparkling-bubbled brown soft drink , 
 
with phosphoric acid...  
for remove rust it's perfect and it's not too strong for the koftgari ! 
 
2,5 -3 hours in a bucket, not all the piece , 
just the front side ( I put the liquid gradually ... ) 
 
then a sponge and 1000 sandpatch with a little baking soda 
 
that's it 
			
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  Excellent and thank you. I have used the same, but in my experience it has to be the "full fat" sugary version, not the low cal.