Water supply to apartment.

We install a cartridged filter at the inlet of our apartment water supply system. After about 1 week, one can see how dirty the cartridge gets. This indicates that there are particles of dirt (maybe sand or earth) in the incoming piped water to the apartment.

Compare the 1 week filter with the similar white cartridge before installation.

What could have caused the dirt? In reality piped water in Malaysia is not that clean. Once upon a time one used to say of piped water in Malaysia as "You can drink the water from the tap". Not anymore.

For my apartment, I guess (I have not checked on this) 'clean' water is collected in a 'mother' tank at the bottom of the building and then pumped up to the secondary tanks at the top of the building, from where water is distributed to the various apartments. The incoming water is already dirty, and the 'mother ' tank may have sadiment collected at the bottom of it and after that the sadiment may then collect at the bottom of the secondary tank on top. When water reaches an apartment, its not really clean water though a lot of sadiment from the public water supply haa already collected at the bottom of two tanks. What one sees at the cartridged filter is the leftover of the total sadiment from the main public water supply.

We change the water filter cartridge periodically, say once a month. And it is expected that the 'mother' water tank and the secondary water tank should be cleaned say once every 2 years at least. Currently the cleaning (to the best of my knowledge) have never been done by the apartments Management.




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