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Oil Tank piping help

sky12345 Member Posts: 3
I'm having an underground oil storage tank removed and replaced with an above ground tank.  The new tank will be located in the basement no more than 15' from a boiler with a Carlin 100CRD burner equipped with a suntec single stage pump.  It is currently set up with supply and return piping.

My question.  What is considered the optimum set up for fuel oil piping on a tank in the basement?

An oil  delivery man mention going back with supply and return with a check valve on the supply through a duplex tank bushing from the top of the tank.   Another tank guy mentioned using a single supply from the bottom of the tank.  The new tank will be 275 gal.

A Suntec technical document stated that a single pipe is recommended, with no check valves, due to lower inlet line flow.

What is considered the accepted safe set up for oil supply piping for a tank on the same level as the boiler?

Thanks for any thoughts.



  • billtwocase
    billtwocase Member Posts: 2,385
    2 pipe

    is not needed, and rarely is. If the system is now 2 pipe, make sure someone removes the bypass plug, and plugs off that port, ant there should never be any valve of any sort in a return line. At the pump or tank. The system will gravity feed the unit
  • sky12345
    sky12345 Member Posts: 3

    Thanks for the replies.
This discussion has been closed.