Forum Discussion

CSG's avatar
CSG
Explorer
Feb 21, 2015

Rusty propane tank - is it safe?



I've got a similar tank as this mounted to the chassis of my 2002 Traverse. Half the paint was flaked off when I bought the B in 2008 and it was pretty rusty. Enough so that I brought it to a propane dealer and had them look at it. He reassured me then that while it looked like heck, it was fine and filled the tank.

I used it a few times over the years for the cook top and heat but haven't used it for a few years. Looking at it today, it looked about the same as I remember from a few years ago and I turned it own to try the stove. Worked fine. The rusty parts of the tank feels like sandpaper. I'll have it checked again after the weekend.

I guess my question is, considering how expensive these are, when/how do you know it's time to replace?
  • Being in Florida, it probably went to the beach a few times and wasn't rinsed very well. As long as it's just surface rust, you can sand and paint it without worries. If you smell propane, use a spritz bottle of soapy water and see if bubbles form anywhere.
  • This is a good reminder to all of us: check your lpg tank, lines and connections at least annually. If you see rust is increasing or started, do something about it. Use soapy water and a small brush to check for leaks on the connections. It just takes a few minutes to do a pretty thorough check on this stuff and certainly pays off in the long run.

    By the way, Krylon makes a paint now that can be sprayed directly over light rust. I used it with excellent results on an iron gate a few years ago. It seemed to encapsulate the rust and I guess the paint kept oxygen from getting to it. Hasn't flaked off of the metal gate in all this time.
  • Back in 2002 Manchester had problems with their paint process. I think shortly after they went to powder coating. Mine, when new, had so much rust I made them replaced it with one that was powder coated. I figured if it looked that bad then I didn't want to have problems years later.
    If it's just surface rust not a problem, just cosmetic, but if the metal is being eaten away, I would remove it, strip it, get all the rust off, prime, and spray paint it with a good metal paint.

    Not hard to remove the tank, but much easier on a lift. I pulled mine, because I could faintly smell gas. I could not find the leak, figured it had to be somewhere behind the tank, sure enough a compression fitting had a crack in it. About a 2 hr job, and a couple bucks for the fitting. You are dealing with gas lines, so if your not comfortable removing, and reinstalling the tank yourself have a RV dealer do it.
  • The van came out of Florida where it lived its first 5 years before it was re-po'd. I don't think it looks any different than it did then.

    As I mentioned, I'll bring it to Suburban Propane after the weekend and see what they say. It's not that I'd mind replacing it if necessary, I just don't know who is certified or interested in doing it locally what with it being attached to the chassis. I'm sure I could find someone if it's called for.
  • Corrosion is an effect of oxidation. It can be accelerated in a salty evironment. It only affects the exterior of the tank, as there is no oxygen inside the tank.
    If you are concerned, go to a propane certification center, such as a wholesaler to have yours inspected.
  • You will know when it is not okay when it goes boom. Maybe it will be too late.


    Can you post actual photo of it? Rusty tank is a concern as my old class A had one. I got rid of it before I needed to do anything to it.
  • Surface rust is common. I cleaned by tank and repainted just to make it look better. I used LP tank paint from Ace Hardware.