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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...

I have a question regarding how to size the roof drain discharge sewer to nearby manhole. For building, when we size the roof drain, the national plumbing code has form to select the roof drain size based on 25mm/15min storm for most area in Ontario. When we size the storm sewer, water flow is...

Thank you for you reply. Now what's the problem is general contractor hired us to design the plant piping system. The plant's engineer and us both agree to use galvanized steel pipe. But the general contractor ordered black steel, which is wrong, then he suggested PVC. He talked to the plant...

We design spindle cooling water system for a industrial plant. I would like to know if I can use PVC sch40 instead of galvanized steel pipe. This cooling water is low pressure, but is treated water, so we have to conside corrosion. Thanks for your help.

Thanks lot!

Hi, I have a question about EPANET node demand. Usually only primary nodes demand are consided in the network. If there is any method to decide the area (dwellings) is supplied by that node. Thanks,