They were made to address the increasing usage of pressure sewage systems during that time. Grinder pumps were invented by the engineers in General Electric during the end of the 1960s. This is why grinder pumps have higher heads than standard sewage ejector pumps. Using a small outlet pipe helps to pump the sewage farther, thus increasing the total height to which the sewage can be moved. Since the solids are ground to fine sizes, they can be pumped out through an outlet pipe of a smaller diameter like 1.25 inches. This grinding mechanism grinds solids like human waste, toilet paper, an occasional sanitary pad, etc, and it prevents the pump from clogging. Like I mentioned above, grinder pumps are sewage pumps but with a grinding mechanism. Therefore, a special type of pump called a grinder pump is used. However, if the wastewater has to be pumped far uphill, a regular sewage pump won’t be able to do that as the head requirements (the height to which sewage needs to be pumped) are high. So to remove the waster water, it needs to be pumped into the sewers. Since the main sewage is situated higher, the water from the house will not drain by gravity. Grinder pumps pump the wastewater coming from a house situated below the main sewage line in the area. Common grinder pump problems & solutions.When the sewage needs to be pumped far uphill.

When the house is connected to a low-pressure sewer system.Applications: When do you need a grinder pump.Head vs flow rate: The importance of performance curve.

Sewage ejector pump problems