#What is a sewage ejector system install#

This also works for a while, but the clogging is only delayed, not avoided, since large stringy items enter the pump anyway.

Use a carbide-tip impeller-An impeller with carbide tips would cut the solids against stationary hard edges on the suction casing.

#What is a sewage ejector system install#

Install a recessed vortex impeller-This usually alleviates the problem temporarily, but when a mop head or a similar bulky item goes through the pump, it will usually get stuck at the check valve.The more proactive managers and maintenance engineers have chosen other options:

Many just choose to live with the problem. Property managers and maintenance engineers have been faced with frequent and expensive service calls to unclog these ejector pumps. However, for high traffic areas, the story is different. These ejector pumps have been and are still doing a great job in many low-traffic, well-maintained installations. A control panel with the aid of floats would turn the pumps on and off at pre-set levels, alternate their operating cycles and sound a high-level alarm if required. The pumps would typically be suspended from a plate covering the top of the pit and positioned so that the suction port rests 12 to 18 inches from the bottom of the pit. A typical installation could comprise a round pit about 4 feet to 6 feet in diameter and possibly 6 feet to 8 feet deep. For the most part, the job of evacuating sewage from a collection pit in the basement of a hospital, hotel or high-rise building has been given to a 4-inch or 6-inch solid handling sewage ejector pumping system with motors and stands above ground. The challenge of pumping these items from a sewage collection pit, where they invariably end up, into the main sewer line has become a critical problem. The variety and popularity of personal disposable items has drastically increased in recent years.