Go Back   Train Horn Forums > Automotive > Onboard Air Systems
 Register

Reply
 
Thread Tools Display Modes
  #1  
Old 4 Weeks Ago
CN8815 CN8815 is offline
Member
 
Join Date: June 2015
Posts: 41
CN8815 is on a distinguished road
Default Air Tank Rust

As many in the Great Lakes Region know, it's been a very wet summer. Raining pretty much every other day, and therefore it's been very humid. I drain my tank after every use, but admittedly I forget to use the drain valve sometimes. However, whenever I'd use the drain valve, I'd typically get a light mist at best. Eventually I heard sloshing in the tank. I drained the tank from full pressure this time, and still barely any water came out, though the valve froze several times upon release. I decided to tip the tank upward as I still heard sloshing, and a large orange puddle came out.

I removed the large 1-1/2" bushings from the top of my 20 gallon tank and saw this. Some of the sludge is oil. I'm not sure how concerned I should be about this, though I routinely fill the tank to 175psi. I know now I should tip the tank upward after each use, but I'm not sure if it's already too late. Needless to say, the last thing I need is my air tank to become a second stage booster for a rocket launch, at least while I'm still using it.

-20170823_040230 by CN8815, on Flickr

Last edited by CN8815; 3 Weeks Ago at 02:48 PM.
Reply With Quote
  #2  
Old 3 Weeks Ago
danh@oasismfg.com's Avatar
danh@oasismfg.com danh@oasismfg.com is offline
Godfather
 
Join Date: September 2008
Location: Santa Ana, CA
Posts: 4,417
danh@oasismfg.com is on a distinguished road
Default Re: Air Tank Rust

I've heard some recommend putting in a small amount of anti-freeze after draining your tank but I don't know how or where they add it.
__________________
CFM Dude
World's most powerful 12/24 volt air compressors
Unrivaled performance / Exceptional service
Reply With Quote
  #3  
Old 3 Weeks Ago
CN8815 CN8815 is offline
Member
 
Join Date: June 2015
Posts: 41
CN8815 is on a distinguished road
Default Re: Air Tank Rust

Thanks. I dumped a few gallons of vinegar in the tank overnight and cleaned it out pretty well. There's still rust stains on the tank, but no evidence of pitting around the welds or end caps. The freezing issue I'm sure had to do with all the water in the tank. At one point I couldn't even get my horn to sound.

I guess it's a good lesson though. Unless you have a vertical air tank, or can drain the tank vertically, there's a pretty good chance the drain valve didn't remove most of the water.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:56 AM.