Mike,this is the hose that was leaking, it is old like me also It looks like it has two layers in it like you describe but the inner layer is the same color as the outer is , does this look like what you've seen before ? I replaced it with some newer rubber lined SS hose and it doesn't leak, yet I will end up replacing that and all the rest of the hose in the system with either aluminum hard lines and TFE lined hoses and fittings as soon as I can