your getting ripped off then if they are classing painted /used pipe as braziery even soldered fittings doesn`t usually affect price all classed as heavy copper . Purely when there is brass fittings on it at all our local scrappies do they the class it as brazieryMy understanding is that all soldered/braised/painted/used copper is classed as Braziery? Has been every time I've gone to weigh in. The only other is 'clean' copper which attract the highest prices.
. cylinders have a certain price as well which is above braziery worst case is if lagged they knock off 2 kilo .
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Lead wash heat exchangers out of boilers also have there own price per kilo