Actually I have been noticing a lot of older services now that were done in RNC that are coming apart or actually shattering. My parents place was built in the 60's and the service was done in rigid ALUMINUM, well everthing except the galvo mast and the cast LB at the bottom, but in general the service is in better shape than some of the one's I have seen where the PVC is all shattered or the fittings are coming apart and the service conductors are now exposed.
A.D
