Originally Posted by rwlpatrick
two problems with these cylinders
one they cannot be requalified like steel and aluminum cylinders they have to be pressure tested and that costs more to do.
two they are only have a 15 year life cycle and need to be taken out of service
It seems that my steel tanks at home are only certified for ten years. When I went to make a recent fill on one of my older tanks and they would not fill it because is was over 10 years old. Maybe there is a way to re-certify it?