Compressor tank cleaning

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  1. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    I have an old Kellog American 120 gallon horizontal compressor that I frankensteined up several years ago. Works real good. I drain it regularly but don't like the rust colored water I am seeing. Although I must admit, I have seen it on every compressor I have ever drained.

    The "PVC IRON" pipe thread has me rethinking my use of 3/4" PVC there and I will probably go back with iron pipe sometime after the new year. Is there a way I can clean the tank out? Maybe coat the inside like a gas tank to protect it from rust? What's the scoop?
     
  2. 805moparkid

    805moparkid SS And AFX Worker Bee

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    well first thing that comes to mind is have it chemically dipped like we do our cars, only thing left is virgin metal. then coat it with something, epoxy and/or...
     
  3. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    That would take a big vat.
     
  4. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    "Old." I'll tell ya Rob, I'd seriously and I do mean, consider hydrotesting that thing. A guy like you can do it yourself. You may know, the entire idea of a hydrotest is that if you burst the thing, water won't cause a huge explosion.........just a mess

    Fill it clear full of water and devise a way to pressure it up. You could even use CO2 for "that last cup" so long as you get it full. Tank should be tagged as to what specs it meets.

    I've considered.......LOL if I ever buy a new one.......of "POR 15 coating" the bottom of the tank.

    Nope wasn't mine LOL

    [​IMG]
     
  5. 805moparkid

    805moparkid SS And AFX Worker Bee

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    we have our cars done... so yea its a big ass vat
     
  6. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    I know Del. But it's all I got. At least for a big compressor. I do have a smaller much newer Husky.
     
  7. bighammer

    bighammer Well-Known Member

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    Just wrap the tank with one of those 'scatter proof' blankets they use at the drags. Should be fine!
     
  8. Abodybomber

    Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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    Hit it with Por-15...
     
  9. ducter

    ducter Well-Known Member

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    Don't really have a solution, I have thought the same about mine and it's only maybe 3 years old. I would be hesitant on doing anything for fear of it not adhering properly and flaking off into my lines, tools and worse paint.
     
  10. KitCarlson

    KitCarlson Well-Known Member

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    It could be treated like a fuel tank. Water, 10% muriatic solution to remove rust, neutralize with baking soda water. Rinse, dry ... not sure how. Then use Glyptal 1201. Pour in rotate. The Glyptal is expensive, but holds up well.
     
  11. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    Boy now THERE'S a brand I haven't heard mentioned in years.
     
  12. 75Sport

    75Sport Grandpa FABO Gold Member

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    Rob this works^^^^^. Instead I bought the fuel tank coating. Probably was the same thing. Dan
     
  13. RustyRatRod

    RustyRatRod Weenie idiot loser. FABO Gold Member

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    Yeah I don't know why I didn't think of Glyptal. We used it at the machine shop where I worked to coat the intake valleys of race engines to improve oil drain back. That stuff is evil badass. Thanks. I might give it a try after the first of the year.
     
  14. ducter

    ducter Well-Known Member

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    For those that have done this, is adhesion not a problem? I mean everything I've done in the past (never inside air compressor tank) if I don't properly prep the surface I never manage to get anything to stick.
     
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