2airishuman
Contributor
@halocline I don't know any lds's that pre-vip the tanks before bringing them to hydro, and certainly not any that tumble/whip before they go out. They usually do it afterwards since the tanks are filled with water during hydro and there will be flash rust that shows up afterwards
The two LDSs I use perform the VIP after getting the cylinder back from hydro, but they also perform a brief inspection before sending it away. That way, if it is a complete disaster, the customer doesn't have to pay anything.
Just an update for everyone. Finally got a reply back from faber and dropped the tanks off at the hydro facility. Received a call today saying that they would be ready for pick up this afternoon and unfortunately one of the tanks failed, specifically the one that I posted pictures of the lines down the side, and they used the lines as the reason. They said it failed the visual inspection because of that and I'm guessing they never actually hydroed it. Kinda of a bummer but it's oh well, one is better than none.
Another galvanized cylinder taken out of service by an uninformed hydro shop for no good reason. The galvanizing was that way when it was manufactured, and the irregularities in the galvanizing have nothing to do with the strength of the cylinder wall.