When a tank is re-certified, is it only good for a single fill? Does a new date stamp get placed on the old tank? Just curious?
As for getting bottles refilled, I agree that it's getting harder and harder to find places that do it, and the one close to me here, has no idea what they're doing.. They also flat charge by the tank size, regardless of how much they put in.. bring a 20 lb tank that's empty or 3/4 full for a top up, and they still charge 30 bucks regardless. Thieves! (i don't go there anymore..)
Me, I'd just get new tanks so it's no longer an issue, and shop around for tanks with youngest dates.
2013 Heartland Bighorn 3010RE
2012 Silverado 3500 SRW 6.6 TD