Thanks all. I looked at both the sites nsfishguy posted, as well as garf. When I get to my laptop I’m going to figure out what the actual safety factor is with this site
https://docs.zoho.com/sheet/publishe...7ae4&mode=html
But based on what I’ve seen so far, I’m going to pass on this tank. It’s at least a few years old but the seller doesn’t know the original manufacturer or the true age of the tank.