Please add filter to protect your health first even Water Service Dept replied that no problem. Did they really test the water sample and give answer, I do not believe they will do it in such a quick action.
By the way, please monitor your added filter(s) and exchange it in certain period, say 6 months, 9 months or 12 months, depending on your use of frequency.
EOC members discussed with GW this evening and the initial findings are:
1. Tower 6 and 7 have installed intermediate pump at high level due to some water supply problem at the very beginning
2. This may cause excessive gas bubbles in the water supply that will be settled after awhile
3. Water check okay with no contamination
4. Will conduct test shortly to bypass the intermediate pump to see the bubbling problem can be fixed
Should anyone found any problem with water quality, please report to Tony