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Replacement of a fuel oil tank valve

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ArtM1
ArtM1 Member Posts: 7
in Strictly Steam

I have four 250 gal. tanks in the bsmt. of an 8 unit apt. bldg. The second tank from the filter has a valve that doesn't close , making the changing of that filter next to impossible. I've considered running the boiler until the tank is drained or creating a negative pressure with a shop vacuum. These two methods seem to be viable options , but I'm wondering about the possibility of plugging the inlet of the valve from inside the tank ( using a rubber plug fastened to the end of a bent piece of thin wall elect. conduit). I couldn't replace the valve using the third method , but thought it might be a way that I could at least change the filter that needs to be replaced and do the valve replacement in the spring/summer. What do you guys think ?

Comments

  • HydronicMike
    HydronicMike Member Posts: 207

    I’d get it below 1/2 and do the vacuum thing

  • ArtM1
    ArtM1 Member Posts: 7

    The valve is an OTV 100

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,172

    If you vacuum down that tank you will have to shut the valves on the other tanks as well. In fact why not shut the other tanks off now and pull oil out of the tank with the bad valve. When you get the level as low as you can disconnect and change the bad valve.

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