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				 Washing Soda 
 
			
			Bob
 My son David is using this method exclusivly on his WK60 restoration with amazing results.
 The really good thing is that it's clean dust free, noise free and can work while you do somthing more useful.
 
 It gets our vote, we have been toying with the idea of digging a shallow trench (about one foot deep) linging it with PVC sheeting  lowering the frame into it,  filling it up with water and washing soda and leaving it to it for a week.
 
 Pete
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