Hello
Propane tanks need to be recertified every 5 years, steel or aluminum. I
just had mine recerted on the 88. I have the originals on my 68 and just
had those recertified as well. As long as they are undamaged they can be
recertified for as long as you need them to be.
Ed
> They need to be INSPECTED every 10 or 12 years, that's just a visual
> inspection followed by stamping that inspection date in the steel. They
> won't be filled most places without the OPD valve. It prevents the
> stupidest of propane tank fillers from overfilling the tank. Sometimes
> its cheaper for steel tanks to buy new and sometimes its cheaper to pay
> for the inspection and the OPD valve. Keeping the steel tank painted
> well will go a long ways to a safe inspection. Rust on the outside would
> condemn a tank in a hurry. Rust pits even faster.