List of Contributions

The low water pressure may not be directly related to the problem, but is a facilitator. Valve gaskets and pipe gaskets do an excellent job of preventing the water on the inside of the pipe from leaking outward; but they do not prevent water from the outside leaking in if the internal pressure ( hydraulic ...

As a Professor of Civil Engineering, a PE and a BCEE, Rachel's concern is real. The company is taking a real chance that could involve public safety. That is the real concern. I would recommend she talk to her immediate supervisor and request that he/she take a look at the work; if they are too busy, ...

Unfortunately many people are missing the point here. With climate change, even if this is only temporary for a century or two, we, in California and other western US states that depend on snow pack, will be losing our best and least expensive surface water storage -- the snow pack. This is a wonderful ...

------------------------------------------- Joseph Reichenberger Professor of Civil Engineering Monterey Park CA (626) 288-5046 ------------------------------------------- It is a simple mass balance. Assume all of the dissolved minerals are "left behind". You need to do a liquid volume mass ...