separating different metals

Cast and #1 Iron usually pay the same (but not always). I usually throw them together on a load. But you're taking a chance. Re: the bathtub - Up here, it goes as Light Iron because of the porcelain. Be careful with the snowblower because if there is anything on it that would be classified as Light Iron, it could make the whole load become rated as Light Iron. Generally, you need to have the stuff separated on the trailer. Then unload one type, go back over the scales and unload the next type ... If I do that, I usually load the #1 up front of the trailer and Light Iron toward the back for handling purposes. Nonferrous (except Aluminum Sheet) goes in the pickup bed and, again, roughly separated by type.