Pressure Testing

Below Ground Pipework Testing


County Pumps’ engineers are all fully equipped with test gear equipment on their vehicles to carry out pressure testing on below ground lines as required.  This can be included as part of a preventative maintenance schedule or can be carried out as emergency investigation works if problems are suspected.  Testing of below ground lines has become an essential part of good site maintenance for compliance with the latest DEFRA and PPG guidelines.

Suction lines from tanks to pumps and
off-set fill lines can all be remote from a facility and give a section of below ground pipework that can’t be seen.

Regular servicing and maintenance enables all visual checks to be made on the tanks and pumps.  Checking of calibrations to weights and measures tolerances confirm the accuracy of fuel being dispensed.  However, any suspected fluctuation in fuel figures, increased dirt in filters or possible traces of water in fuel could be an indication of serious fuel line issues.

As a minimum, we would always recommend testing is carried out every two years.  Many of our leading customers, however now include this as an annual inspection as part of one of our scheduled preventative maintenance visits, at preferential rates.

Leaking below ground fuel lines can incur thousands of pounds in fines, but good site maintenance and clear test records, limits the period of suspected loss and is reviewed favourably by EA inspectors.

We must all look to protect our environment and the continual upgrades of equipment and self-bunding of tanks helps to ensure the safe storage of fuel, however, unseen lines also need to be protected by regular testing.

Diesel and gas oil lines are tested using air pressure for a minimum period of one hour.  Petrol lines are tested using nitrogen for a minimum period of one hour.  Works carried out to comply with HS(G)41.

Please ring our service team to discuss any testing requirements you may have.