Tanks – septic tanks and grease traps – are not designed for man entry, which makes cleaning a highly specialised operation. Harpers have a wealth of experience in the cleaning and decontamination of tanks and vessels.

Whatever a tank contains or has been used for in the past, we can supply the appropriate vehicle or high airflow unit to remove any contamination.

Where it is possible to clean a tank externally, we often use water jetting to remove the residue. Water is added to the tank and agitated, at an appropriate pressure for the volume, and the contents are then pumped out for disposal.

We are also highly trained and equipped to place people inside a tank for cleaning. As with other instances of man-entry, we produce a full risk assessment and gain a confined space permit to work, as well as completing any tests for contaminants. A team can then be assigned, instructed by a qualified team leader. If the atmosphere is likely to be hazardous, breathing equipment will be used and operators will be on stand-by with MARS resuscitation equipment, allowing cleaning to be carried out safely.

We can also perform a tank inspection, which will identify the need for repair or renovation – then just leave it to us to make it fully operational once more.