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LP tank rust?

kcopp Member Posts: 3,990
I have a customer who I have done a good deal of work for.
They have a 30 yr old buried gas tank that the LP supplier says in rusting....fair enough.
Besides changing out the tank they also want to replace the 50' copper line because they are concerned that the "rust" in the tank may have contaminated the line.
Customer is put out as the line runs by the leach field and there are extensive flower gardens... lots of damage.
I realize the LP supplier is just covering themselves anyone ever heard of rust contaminating LP?


  • hot_rod
    hot_rod Member Posts: 16,315
    Is there a regulator on the tank? They often have a fairly fine mesh strainer in them.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • SWEI
    SWEI Member Posts: 7,356
    Pressure test the line -- something like 24 hours at 50+ PSI would allow me to sleep soundly.
  • Aaron_in_Maine
    Aaron_in_Maine Member Posts: 315
    edited September 2015
    That's crap the line should be fine. The regulators have screens. I know of underground unprotected copper lines older then that. That are still working fine. Then can put a compressor on the line blow it out and then put a pressure test on it if they are that concerned.
    Aaron Hamilton Heating
    [email protected] yahoo.com
  • kcopp
    kcopp Member Posts: 3,990
    There is a regulator at the tank and at the house.