pcscrapper said:
why throw all your highgrades in with your low grades, I would think that would lower the over all value on everything,
pcscrapper,
Let me try to explain it another way. If you're selling your scrap to a refinery that
samples your lot and pays based on the
assay of that sample, there is no need to separate different types of scrap.
Let's say you have 10 rolls of pennies, 10 rolls of nickles, 10 rolls of dimes, and 10 rolls of quarters. Keeping them separate, you know the pennies are only worth $5.00, the nickles worth $20.00, the dimes worth $50.00, and the quarters worth $100.00. All together, they are worth $175.00. It doesn't matter whether you keep them separate or dump them all into a big pile together, they're still worth $175.00. You haven't lowered the value of the quarters by mixing them together with the other "lower grade" coins. If they are all thoroughly mixed together, and then a sample of 1/4 of them are taken, the sample will have
approximately $43.75 worth of coins. If we multiply the value of the sample times 4, we still come up with a total value of $175.00. That is the idea behind sampling, and that is how large refineries work.
Now if you're selling your scrap to a company like Boardsort, for example, it makes sense to keep your different types of scrap separate. They don't sample your lot. They pay varying prices for the different varieties based on many, many tons of the material they have processed in the past. So if we continue the example of the coins above, and you keep the coins separate, it's easy for the buyer to look at your lot and quickly determine the value. But if you mix them altogether and take them to someone who only has the time to look at your big mixed lot of coins, they are going to have to
estimate the value of your lot. In other words, they have to guess, and when they have to guess, they are likely to guess on the low side to protect themselves. In that case, you will probably get less than $175.00.
It just depends on the type of buyer you're dealing with. If it's someone who thoroughly mixes the lot, takes a representative sample, and pays based on the assay of the sample, there is no need to keep things separate. If it's someone who has to take a quick look at your lot and guess at the overall value, you would probably be better off keeping things separate.
I hope that helps.
Dave