Hong Kong authorities have provided temporary tanks and vowed to improve the pipes for thousands of households in Sai Wan Ho after bitumen particles were found in water supply samples, according to a lawmaker and the management of a housing estate. Lawmaker Edward Leung Hei said on Wednesday that he had also received complaints about particles in the water from some residents at the Grand Promenade and Lei King Wan estates, which are home to about 2,000 and 2,300 households respectively. “The...