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Old 550 in ground tank, how many inches is absolute minimum?

hh409 Member Posts: 14
I was looking to run my old 550 in ground tank to absolute minimum before hooking up my new 275 basement tank. The old 550 is from the 1950's . Typically how far above the tank is the pickup and how many inches of oil would you estimate absolute bottom?



  • STEVEusaPA
    STEVEusaPA Member Posts: 5,430
    edited April 2013
    The only way to know....

    Without historical data from a run out, is to let run out. Everyone installed them differently, and if there was a water problem in the past, someone could've pulled up the line a little. Typically we install the new tank, fill it, run line over to burner, and run the old tank until its dry. Then do a proper change over.

    Along with your other post, if you convert to one pipe, don't forget to remove bypass plug
  • hh409
    hh409 Member Posts: 14
    thanks for the info

    got it

    thanks for the info
  • billtwocase
    billtwocase Member Posts: 2,385
    I always

    pulled the suction line up about 4" off the bottom. Is the tank stickable?
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