Read the fine print, always. For an example a battery that you throw away might be extremely harmful to the waterways and the soil, and not only that the toxics in them are extremely damaging for humans and wildlife.
Gone are the times where cutting in to the soil took days and hours and hours of man power. Passed are the ages that you needed so many workers to slave themselves away with shovels and another group to run up and down with refuse dirt filled baskets. You do not need so many days to finish hollowing out of a crawl space, or put a drain pipe in now. Same goes if you wanted to expose utility that are earthed. With the newest cutting edge techniques in the industry; you will have none to very less down time. What’s more, you will be able to save so much money on man power. Above all, things have become so much secure.
Safest method in the field
Without using any sharp metal equipment, the test pit that you need hollowing out is compressed with air. The air loosens the dirt, making it able to be sucked through a pipe. This is called vacuum excavation adelaide. It also is called test pitting or air vacuuming. Often times used for exposing utilities or in construction, companies that provide this service always record a very high success rate due to the advantages as opposed to general human powered methods.
How it works
This sort of an excavating unit consists of a power source, a tank that will be storing the removed soil, air and vacuum regulating systems and of course, a control system. It also contains a system that is driven by air that is used for demolition and drilling purposes. This complete unit with all the components is mounted on a truck. 
Why is it beneficial?
- Since no sharp metal objects are used, the utility will remain safe.
- There are no moving parts digging in to the soil. Meaning there is no risk the utility coming into contact with the excavator and getting damaged.
- This process is extremely versatile due to its non invasive nature; making it possible to be used on any kind of area, be it gas, waterways, thermal distribution, telecommunication or power.
- Comparative to other methods, it is the least disruptive. Resulting in optimal safety and a cleaner worksite.
- Quieter and less sound polluting.
- Patching up the test pit is simpler and easier, could be done temporarily or permanently.
- The work hole is small; as it measures up to twelve inch by twelve inches standard.
- Due to the method’s straightforward and trouble-free nature, you will get a much cost effective service within a short frame of time.