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To bimr: Thanks for your reply. The pumping station discharge elev. is 267.2m and forcemain discharge to a Manhole at top the hill and invert elevation is 308.9m. The forcemain running has three locations with steep up, around 25% slope in short distance. But the two broke points are over 60...

To bimr: The forcemain broken is pipe rupture. The crack is around 2 metre long.

An engineer was hired by a developer to design a sanitary pumping station for a new subdivision in 2000 with capacity of 32L/s. The forcemain was designed and installed by developer. In 2002, this Engineer was hired by our company, later the developer wanted to upgrade the pumping station to...