Inspection of Fire Water Tanks

Underwater inspection of fire water tanks

A fire water tank is required at a location where hydrant network does not meet the minimum performance requirements for the given type of facility or where such a network does not exist. According to the Journal of Laws 2009.124.1030, capacity of such tank should be 10 m3 of water reserve per 1 dm3/s of missing water supply system capacity, but not less than 50 m3. Fire water tanks require regular inspections in accordance with the manufacturers’ recommendations and applicable standards. The use of remotely operated underwater vehicles (ROVs) for inspection allows for assessment of their interior and equipment without draining the tanks and temporarily shutting down the facility. Eversub inspects the fire water tank for damage and corrosion. We measure the thickness of the sheet metal and visually check the condition of the tank equipment. The customer receives a written report on the underwater inspection with a video record from the camera of the underwater robot.

Frequency of inspections of fire water tanks carried out by Eversub

Annual inspections:

In accordance with the PN-EN 12485 standard and recommendations of the majority of manufacturers

Inspections every 3 years:

All types of tanks in accordance with the EN 12485 standard

Steel tanks in accordance with the NFPA 25 standard

Inspections every 5 years:

All types of tanks in accordance with the VDS 4001 CEA 4001 standard

Other types of tanks (other than steel tanks) in accordance with the NFPA 25 standard

Inspections every 10 and 15 years

The use of an underwater robot for these inspections is limited to checking the tank and planning works and making a cost estimate, before proceeding with the proper inspection. Because the PN-EN 12485 standard and VDS 4001 CEA 4001 standard require the water tank to be emptied every time.

Continuous cooperation in the field of inspection of fire water and other tanks

We provide our services throughout the country. We offer preferential conditions in case of continuous cooperation. We also inspect sedimentation tanks, bioreactors, ballast water tanks, potable water tanks, tanks for other purposes.