The Differences Between An Above Ground and Underground Tanks

October 10, 2019

What are the Differences Between an Above Ground and Underground Tank?

Since it’s buried, an Underground Tank is more aesthetically pleasing. Once the excavation area is landscaped, a UGT is out-of-sight. The only thing visible in the yard is a small dome used to refill the tank.  

What are the Pros and Cons of using an Above Ground Tank (AGT) vs. using an Underground Tank (UGT).

AGT Pros:

  • installing an AGT costs a lot less than installing a UGT
  • installing an AGT is faster
  • in the event of flooding, an AGT may be safer than a UGT because an AGT stands higher. AGTs stand a few inches off the ground and are bolted down at the feet.
  • Less susceptible than a UGT to “floating” or shifting under the ground if it’s not settled on a sturdy foundation.

AGT Cons: main line sports 30 jan 2015

  • Not attractive
  • Area needs to be landscaped
  • Exposed to all weather conditions which means an AGT is more susceptible to damage including dents, corrosion and puncture.
  • if located in an area prone to flooding, a UGT can float if the water rises above the propane level in the tank.

 

Underground Tank (UGT)

UGT Pros

  • easier for UGT to stay temperate in extreme weather, especially freezing cold, because its surrounded by earth
  • protected from corrosion
  • safer than an AGT in case of a propane leak because a gas leak would be more contained by the soil
  • may raise the value of your property

UGT Cons:

  • installation requires digging a hole in your yard. For example, the hole for a 500-gallon propane tank measures 11-ft. long x 4-ft. wide by 5-ft. deep. 
  • More susceptible to “floating” which means the tank could shift under the ground if it’s not settled on a sturdy foundation. (If positioned properly, it’s unlikely to move.)

UGT Short-term Con:

  • excavating your yard will cause the most damage, leaving a large area of dirt to be filled in.

UGT Long-term Pro: 

  • after landscaping with grass and shrubbery, your yard may look better than it did prior to the installation