Avoidance of retting water and increased formation of iron compounds
Reason: stagnations in unprotected casting systems
Inhibitor systems for uncontrolled blended water
Reason: elevated possibility of corrosion at the feeding of water from different sources
Inhibitor systems for switches of drinking water
Reason: Reorganisation of top layers after exploitation of new sources or switch to pipeline water
Avoidance of general corrosion by copper
The release of copper evidently can be avoided by addition of orthophosphate. The load of sewage sludge with
copper demonstrably is decreased in the affected areas.
Avoidance of enrichment of lead in the drinking water
As long as the lead pipes are not exchanged by permissible materials, the amount of lead can be reduced by
addition of orthophosphate.
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