Historically, inspection of storage tanks was a costly and time consuming
process. Oftentimes, inspection was postponed or implemented only after
severe problems developed. Before a conventional inspection can occur, consider
the following procedures and potential results:
Disadvantages of Conventional Inspections
- Tank must be completely drained.
- Cost of disposal, loss of finish water must be incurred.
- The tremendous stress and strain of draining the tank and drying out
which can result in further damage to coatings.
- Confined space requirements / possible falling hazard.
- Scaffolding installed to reach inaccessible areas which usually leads
to damage of existing coating.
- Cost of refilling tank (may be prohibitive for high purity systems).
- The tank could be out of service for days or weeks.
- Resterilization of tank and isolation for 24 hours.
Advantages of Underwater Inspections
The major advantage of the inspector / diver is that they are buoyant, so
they can cover every square inch of coating including hard or previously
inaccessible areas. Our divers are approved technicians trained for coatings
and linings inspection. Our inspectors use the latest in underwater video
and photography equipment to obtain clear sharp images.
- Tank does not have to be drained.
- No Cost of disposal, or loss of finish water.
- No Scaffolding installed.
- No need for refilling tank.
- Tank does not need to be taken out of service for days or weeks.
- Video record of inspection
Because we remain completely independent of coatings manufacturers and contractors,
you can be assured of the integrity of the report. Your final report will
include a detailed written analysis of our findings along with a narrated
underwater video tape of the inspection for your files. The report will
also include specific recommendations to repair or maintain structure. Underwater
inspection is the most highly efficient, cost-effective method of inspection
that can eliminate major repairs to tanks or other submerged structures.
The early signs of coating failure usually occur at welds, mechanically
damaged areas, and where pinholes and holidays are present. Early detection
and repair of defects will assure maximum life of the protective coating