Originally Posted by Murf425
The way I figure it, if it has a hydro date on it, then that should be followed. If it didn't need to be hydroed ("need" meaning safety-wise, not DOT's legal ruling), then the manufacturer wouldn't have bothered stamping a date on it in the first place.
Right because manufacturers would never need to know when a particular tank was "born".
Or what batch it came from.
Or need to cover a warranty from the date of manufacture of the product.
Or they always love to retool their stamping for those bottles that "need" vs those that just have it on their "because".