AUCKLAND DRAINAGE.

Auckland Star, Volume LXVI, Issue 213, 9 September 1935, Page 6

AUCKLAND DRAINAGE.

I feel strongly that very serious consideration should be given to the suggestions of Mr. E. 11. Potter re sewage drainage in your issue of September 7. Mr. Potter, however, ha*; not emphasised one very great point in its favour. Manukau Harbour is of immense area and the outlet very restricted. The result is a very strong current out, and if the outfall were placed where the current is strongest all sewage would be swept far out to sea. and, even in the case of a strong westerly and a rough bar, the current .must be outward and the tremendous breakers would destroy all sewage. By this Waitemata and ail its beaches would be paved from pollution. The scheme would be permanent. As for harbour pollution from naval and shipping sources, what is the Auckland Harbour Board doing that it docs not insist on a tank system for all ships in harbour. They empty their tanks when at least 50 miles from Rang'itoto. As for the North Shore drainage, and for all Auckland drainage for that matter, there is nothing to prevent a system of hoppers being used.» even for crude sewage. Such a system is wholly satisfactory for many of the cities in England, and surely should suit Auckland, with its splendid harbour outlets JO SMPH.