CASE The mass on Ms. Câs left kidney is hypoattenuating and nonenhancing on CT. It meets Bosniak criteria for a benign simple cyst (class I) and requires no further evaluation or follow-up. Colonoscopy detects multiple colonic polyps that are removed, and the patient does well.
Water pipelines and distribution systems are subjected to surges almost daily, which. over time can cause damage to equipment and possible contamination. Surges are caused by. sudden changes in fluid velocity and can be as minor as a few psi to five times the static. pressure. The causes and effects of these surges in pumping systems will be discussed along. with equipment designed to prevent and dissipate surges. Only with the knowledge of all of the.
It's the sudden increase in water pressure in the water system when there is a change in the direction or velocity of the water. This can manifest itself in a number of ways. One type occurs when a fixture is shut off suddenly, and water rushing through the pipe is brought to a quick halt.