When you have symptoms (belly pain, diarrhea, a lot of gas), choose foods that are easy on your gut. The trick to managing the disease is to choose foods from the left hand column when you have a flare up or an upset in the functioning of your gut. These foods are low in fiber, fats and are easier on you.
Copper pipes corrode as well, but (theoretically) over a longer period than the galvanized types. Generally a copper pipe can last 50-70 years under good conditions. PH levels in the water and grounding both affect the pipes and speed up corrosion extensively.
It sounds like he removed 3in waste water piping. Copper is worth what the price per pound is right now in your area. I think it is under a dollar per pound right now. But still that 3in pipe is nice scrap.It adds up quick. am having my bathroom redone and my plumber has removed some copper pipes (which are about 40 years old and have some green spots on them) and replaced them with all plastic. What I am wondering is about how much would a piece be worth, one that he took out was about 5 feet long and about 3 inches in diameter.