ok to re-use gas pipe, fittings, and valves?
I am re-routing a gas line in the crawl space under my house.
Is there any reason why I should not re-use the existing black pipe and galvanized pipe (and fittings) for the new gas line?
Also, is there any problem in re-using the existing ball valves for new gas appliances?
Of course I will be doing a pressure check for any leaks in the new gas line.