Getting the right weights Copper Cylinder Scrap

Getting the correct weights for copper cylinders aka hot water tanks can sometimes take a bit of guess work especially when they have lots of limescale inside, the foam insulation is usually 1-2 kgs depending on the size of the tank, as you see in the photos below we opened this copper tank as it was unusually heavy for a tank this size, my guess was 10kgs of limescale to a customer this seemed like a big deduction in weight so it made sense to remove the limescale there and then, the 2 piles of limescale that were removed from this tank actually weighed 13kgs, With the high prices of copper at the moment this could of worked out to be some pretty expensive but useless limescale.