Water for Citizens: December 2012

The very first work that I've witnessed for the water supply works was the upgrading of existing water filter modules at Betong Water Treatment Plant, Sarawak in June 2012. The structural works was seems to be a long way behind completion. I was expecting terrible delay of the project as the works coordination on site was surprisingly very poor for an established main contractor. So, I had almost 8 months of nothing for Mechanical and Electrical (M&E) works on site. When the M&E team mobilized to site in May 2012, I was a little bit relief as I know that the M&E work would start quite soon even tough there were some incomplete paperworks by the contractor which were in the way of their commencement of works.

The water filters upgrading works finally started in June 2012. 4 units of filters were upgraded which had increased the filtration capacity of the filters.
The works sequences were as follows:
1. Removal of existing filter media.
2. Hacking of existing filter bed concrete slab and removal of existing lateral pipes.
3. Installation of new lateral pipes.
4. Concreting of new filter bed concrete slab.
5. Installation of new filter nozzles and air scour pipe.
6. Air distribution test.
7. Charge in new filter media.
8. Backwash and put the filter into service.

To tell the story of the upgrading works, I believe it is better to describe them in photos rather than in words.

1. Removal of existing filter media.