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Tips to know about Vacuum Excavation

The process of vacuum excavation is not very complicated but certain nuances have to be kept in mind while going about it. A vacuum excavator is a machine that uses pressurized water or air to remove dirt and soil. This method is fast gaining momentum, being considered safer than hand digging or using other heavy equipments. With a few simple tips it is possible to excavate in this method without any complications:

  • The water pressure during the operation of excavation should never go higher than 3000 psi. It is essential that the water pressure should always be monitored with the help of a pressure gauge that is often attached above the spinning nozzle. Again, if heated water is being used during the process, even then the pressure should never be higher than 2500 psi and likewise, the temperature should not exceed 115 degree Fahrenheit.


  • In case of opting for air vacuum excavation, the Positive Displacement Blower should be properly checked because it can move great volumes of air and a malfunctioning can cause a serious accident. When digging on rocky soils, it is better to opt for water instead.


  • While working around underground facilities, one should be careful not to aim the water directly at them. In fact, there should always be a minimum difference of eight inches between the nozzle and the subsoil. Nor should it ever be inserted into the soil if one is still working within the boundaries of the tolerance zone. Moreover, the water or air inside should never remain stagnant.


  • Although the vacuum excavation process is fairly safe, there might be emergencies because of which the excavation has to be shut off immediately. It is imperative to keep such an emergency shut- off device at the plant prior to the commencement of the work.

Using the tips mentioned above, you can safely use a vacuum excavator for your project purpose.