21. Pipelines in complex pipeline networks such as under city streets, within process plant or tank farms (fire water mains, etc.) can be surveyed.
22. Pipelines under concrete or under asphalt roads can be surveyed.
23. Ground beds can be located.
24. Lazy or defective anodes can be located within a ground bed.
25. Field effect from anode bed can be assessed.
26. From the decay of the pulsed DCVG signal amplitude areas of greater coating failure can be more readily recognised for closer study.
27. By studying the direction of current flow to faults the applied CP can be adjusted to ensure all faults are receiving adequate Cathodic Protection.
28. DCVG technology can be used on pipelines that cross rivers or estuaries, also on sea out fall pipes.
29. Lazy sacrificial anodes can be identified. Sacrificial anodes can also be located by DCVG technology.
30. DCVG technology can be applied to pipelines carrying all types of fluids, also to electricity and telephone cables to identify damage to the outer protective coating on the armour sheathing.
31. Identify direct shorts inside steel casing pipes. Identify if casing has water shorting out carrier pipe.

As you can see from the above list, which is by no means complete, DCVG Technology provides a new powerful tool to the investigation of protective coatings and Cathodic Protection, to control the corrosion of buried structures. By using DCVG technology your understanding of what is really happening below ground is enhanced. Hence you are able to provide better advice to your customers, or able to do your job as a Cathodic Protection / Corrosion Engineer in a more cost effective manner by advising and taking decisions on the basis of greater knowledge of the problems.