H68.0.02.6C-04
Operating Manual GMK 210
page 15 of 20
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It is reasonable to assume the hull above waterline containing almost no water. Thus perform a
reference measurement above waterline.
Values below 2% should be expected.
Below waterline the values will be higher, especially if the boat has been in water for a long time.
This must not mandatory be problematic. However, if the measuring value exceeds 3% there
should be further investigations.
Areas with pimples or water accumulations not seen from the outside cause considerable higher
measuring values.
It is important that the boat hull is well dried-up before a new antifouling is attached or if the boat
gets reconstructed.
The following procedure may be helpfully to monitor the dry-up of the hull:
Search for crucial measuring spots (visible damages, keel/rudder connections, other areas with
increased measuring values) and mark them with water-proof marker.
Record the values at that measuring spots.