Practical evaluation of iron corrosion control in a drinking water distribution system

This study describes the influence of different corrosion control programs on corrosion rates, and the short-term effects of various levels of corrosiveness on bacterial water quality in model drinking water distribution systems. Corrosion rates were strongly related to seasons and water temperature. This suggests that slightly higher corrosion inhibitor concentrations would be required during summer and possibly lower dosages during winter months. Over a one-year period, bacterial water quality data were similar in new pipes receiving waters with different corrosiveness and phosphate levels, suggesting that corrosion affects bacterial water quality over longer periods of time.