To prevent this, grinder pumps that use float switches to sense the level in the tank are often hosed down to remove the grease from the floats. However, grinder pumps that use floats to sense the level in the holding tank are prone to grease buildup that may turn the pump on unnecessarily, or not turn on the pump at all, causing the tank to fill up and sewage to possibly back up into the home or yard. Grinder pumps should not require preventive maintenance. The tank has a lid made from heavy-duty plastic or metal that is bolted and/or padlocked shut to prevent entry by unauthorized persons. It is a good idea to consult the manufacturer or factory representative before purchasing a grinder pump station to ensure that more than one inlet hole can be drilled. In this case, more than one inlet can be installed. Often, more than one home or restroom (in a park, for example) can be connected to one grinder pump station. The pipes from the home are connected to the inlet the pipe that leads to the sewer main is connected to the discharge. The holding tank, likely constructed of fiberglass, high-density polyethylene (HDPE) or fiberglass-reinforced polyester (FRP), has an inlet opening and a discharge opening. The alarm panel should have both a buzzer and an indicator light. If the pump malfunctions and the waste level in the holding tank rises above a certain level, the alarm panel should alert the homeowner that the pump is experiencing problems. (The level sensing devices vary among grinder pump manufacturers.) The pump has a level sensor either built into the pump, called “sensing bells,” or attached externally to the pump, typically a float switch. A cutting mechanism macerates waste and grinds items that are not normally found in sewage, but may get flushed down the toilet. A pump for household use is usually 1 hp, 1.5 hp or 2 hp. The grinder pump “station” consists of the pump, a tank, and an alarm panel. There are two types of grinder pumps, semi-positive displacement (SPD) and centrifugal.Ĭomponents Grinder pump station with fiberglass tank and stainless steel lid installed outside a home Grinder pump station with HDPE tank being installed If installed in the yard, the holding tank must be buried deep enough that the pump and sewage pipes are below the frost line.Ī grinder pump is different from a sump pump or effluent pump. Grinder pumps can be installed in the basement or in the yard. Once the wastewater inside the tank reaches a specific level, the pump will turn on, grind the waste into a fine slurry, and pump it to the central sewer system or septic tank. Waste from water-using household appliances ( toilets, bathtubs, washing machines, etc.) flows through the home’s pipes into the grinder pump’s holding tank. ( June 2021)Ī grinder pump (also called a macerator pump) is a wastewater conveyance device. Please help rewrite this article and remove advice or instruction. Griffith Plumbing Service offers services for both residential and commercial sewage ejector pumps and grinder pumps installation and repair services at the most competitive prices.This article is written like a manual or guide. These pumps should be professionally installed – an improper installation would cause water and sewage damage in your home. This helps with the flow of the sewage system more efficiently. If you install a grinder pump in your home, paper and other objects that get flushed into the toilet are ground down to a fine pulp. The ejector pump will be needed to force the sewage up to the septic line. Septic lines operate based on gravity, so when a bathroom is installed below the grade of the septic line. An ejector pump or grinder pump fits into a small sewage ejector pit and uses 120v power. Where an ejector pump or grinder pump job is to remove waste. These are different from sump pumps, in that a sump pump is only capable of removing water. Looking to install a bathroom in your basement as part of a remodel? You’ll want to install an ejector pump or grinder pump. And extend the required repair services, and make sure that your ejector is working properly. The sewage ejector pump experts at Griffith Plumbing in Boonsboro Maryland can evaluate the problem. You can also go for re-installation in case it has broken down completely. Depending on your sewage ejector, the switch can either be repaired, adjusted, or replaced. If it is running when there is no water in the ejector pit, this is usually associated with a “switching” problem. Similar to a sump pump, sewage ejector pumps don’t like to run dry.
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