This is about water tariffs and the differences between residential tariffs and commercial tariffs (Selangor or areas served by Air Selangor (also known as SYABAS):
As far as I know,
1. Water meter migration mandatory in Selangor:https://www.thestar.com.my/news/community/2...ory-in-selangorhttp://bayuvillaapartment.blogspot.com/201...-migration.html2. In the past and present, there has been problems with the technical aspects of migration:https://www.hba.org.my/news/2007/807/meter.htmhttps://dcoapj.blogspot.com/http://www.gmssolutions.com.my/blog/how-to...nd-condominium/3. However, if you're a serviced residence built on commercial titled land, you're out of luck:
You will be charged commercial water rates/tariff. Even migration is not provided for under the "mandatory" migration exercise
Basically, service apartments are classified under the commercial category and they fall under Tariff Code 11. Tariff Code 11 excludes you from residential rates or the migration program
https://www.starproperty.my/news/water-bill-dilemma/757754. If you're a condominium or residential property on residential titled land, you're in luck, as the law in Selangor provides for you. Then your issue and hurdles will be with your JMB (refer points to 1 and 2)https://www.airselangor.com/residential/manage-account/https://www.airselangor.com/uploads/2020/11...-MIGRATION.docx5. Latest water tariff codes..... sakit hati if you're a resident of a serviced apartments charged under Tariff Code 11https://www2.airselangor.com/my-water-smart...iff-informationIs it fair? definitely not, 
especially if you are using your residential unit (serviced apartments) for residential purposes.
The swimming pool hypothesis is moot

, since residential titled condominiums have swimming pools too. And water bill for the swimming pool at these condominiums are charged to the meter for that, and the JMB (management) pays for it using the management fees contributed to by residents
The cost of pumping water is moot

, since residential titled condominiums have water pumps too. And ... reference the above
Currently some serviced apartments (older) comes as a bulk water meter (one meter for the whole apartment building), most newer serviced apartments should have bulk water meter as well as individual water meter to each unit. For almost all cases, the bills for the bulk meter is under the purview of the JMB (building management). Air Selangor will be billing the JMB. And in most cases, the JMB in turn have to bill the residents.
How the JMB bills the residents is the most messy part of the whole arrangement. You can even see this issue for the older condominiums (reference point 1 and 2) above with bulk meters. Some could even argue it is arbitrary.
So it is untrue to claimed serviced apartments residents water bills being equal in all cases, as it is up to JMB (building management).
a. Somewhat lucky resident would have a fairer arrangement where the JMB calculates your bill based on actual water use, and apportion the bulk bill accordingly among all residents and the running of amenities like pools and public toilets. BUT YOU STILL PAY EXPENSIVE Tariff Code 11 rates
b. Worst hit are the residents who have to pay RM36 minimum each month. Charged by the JMB. Because ostensibly, the Air Selangor Tariff Code 11 charges RM36 minimum each month. But what residents don't know is, based on the info from Air Selangor, this RM36 should be the charge of the one bulk meter. In cases like this, I think the JMB is running a scam
c. The most messy are the serviced apartments with a bulk water meter but no individual meters..... in such cases, I can guess its will be like hell breaks loose during the JMB residents meeting. How else do you measure how much each resident use? And who pays more?
This post has been edited by when2meets2boy: Mar 11 2022, 04:06 PM