How many pounds per gallon?

Answer 1

That depends on the type material you are referring to. Also, these are two different types of measurements. Gallons is a measure of volume but the other is weight or mass. Please edit your question to include more context or details.

Answer 2

I have no idea,

but a gallon of water weighs 8 pounds

and a gallon of gas about 5

Answer 3

That is a little hard to answer, but I think a good guess might be about 10 pounds. It depends on the exact composition of the potato salad.