We have a quick video here that shows you exactly how the underground installation process works here at Gas Tec:. The advantage of this type of tank is that your yard can go back to the way it was before — you just might have to plant a little new grass.
The disadvantage that these tanks have is negligible. They do cost a bit more, simply because of the excavation and extra labor that goes into the process, but once done, the tank will cost the same amount as an above ground one — with the added bonus of being subtly concealed beneath the ground! It can be a bit of an eyesore. An aboveground tank can require some creative landscaping approaches to hide.
On the other hand, underground propane tank installations require you to dig a hole in your yard. The hole for a gallon propane tank will measure 11 feet long by 4 feet wide and 5 feet deep. In which case your yard may look even better than before. And keep in mind that sometimes underground propane gas tanks can raise the value of your property. For this reason, sand or firm earth free of rocks and abrasives should be used to cover an underground tank after installation.
Underground Tank Location - Underground propane tanks should be in a place where they are not going to be underneath any sort of vehicular traffic.
For instance, a propane tank placed under where a driveway is to be installed is not a good idea and nor is it legal. The underground tank should be placed in a location where it is not going to be underneath anything other than dirt and earth. One of the most unnerving things any gas customer can see is their newly installed underground tank floating in the hole it was once buried in. The rule is this, if the water in the hole rises above the liquid propane level in the tank, the tank will float if installed improperly.
There are precautions that can be taken prior to and during the underground tank installation process including placing wet cement in the hole just before the tank is lowered into place. They will then map out those spaces and see whether or not they interfere with other objects on your property.
For instance, there could be electrical wires underground that make a certain space an inappropriate burial spot. Or, there could be a septic tank buried that prevents the burial of the propane tank. The installers will want to know these things so that they can facilitate a clean burial. At the same time, they must be at least ten feet away from the outskirts of their respective properties.
The installers will need to keep these criteria in mind as well. Once an appropriate burial spot has been identified, the installer will start digging. This is done with an excavator, as it enables the hole to be dug quickly. The size of the hole will depend on the size of the tank.
Tip: Ask if the company you are considering does their own excavation or hires an outside company to excavate for the underground propane tank. A company that has their own equipment is in control of the job and the outcome. After the hole has been dug, the tank will be lowered into it. This is done carefully so as to prevent any cracking or wear and tear.
The tank is then hooked up to propane lines and properly secured. Note: Properties on or by the water may require a concrete slab and the tank strapped to it to prevent floatation. Generally speaking, when a propane tank is buried, valves and other attachments are left sticking out of the soil. To prevent these entities from meeting physical trauma, a cover is placed over them. Propane tanks are available in a variety of sizes.
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