Submersible sewer pump with grinder is also known as a fecal pump. Such equipment allows for the automatic processing of rather coarse wastewater solids, which significantly reduces the likelihood of clogging the sewer.
Design and principle of operation
Sewer pumps for the home are mechanisms whose operation contributes to the formation of an excess pressure level in the system. This, in turn, allows forced sewage removal.
As soon as sewage crosses the permissible boundaries, a submersible sewer pump with a grinder pumps them out with simultaneous crushing of solid particles. As a result, impurities turn into a liquid homogeneous mass.
Since such systems inevitably come into contact with moisture, it is recommended to install a sewerpump made of materials that can resist corrosion.
As for the distinctive design features of the units of this plan, it is worth highlighting the presence of wide flow channels, which provide greater throughput when passing sewage of a large fraction. The chopper plays a decisive role here, which helps to prevent clogging of the system.
Design features
In appearance, such units resemble an ordinary plastic box, the dimensions of which do not exceed the dimensions of a standard cistern. When draining, sewage enters the pump housing, where it is processed by metal blades. Under pressure, the formed homogeneous mass is directed to the drain riser. Such units contain a valve that blocks the access of waste sewage back to the housing.
Where is the best place to put the sewer pump? Installation in a barrel in a room, on the floor, in a specially prepared niche in the wall - these are just a few options for mounting such units. At the same time, the location of the sewer riser does not play a decisive role when choosing a location for the location of pumping equipment.
The most powerful, functional models are able to lift processed sewage through pipe connections vertically by 10 m, and horizontally by more than 100 m.
Types
Household sewage pumps with a chopper are conditionally divided into separate categories:
- Semi-submersible and submersible.
- Outdoor for hot wastewater treatment.
- Outdoor for cold water applications.
Installation of a submersible and semi-submersible sewage pump allows efficient pumping of clean water and sewage with fine particles with temperatures up to +40 oC.
Cold wastewater equipment is used to drain liquid from toilets, sinks, septic tanks and showers. Similar models are presented in the form of the most compact containers. The presence of reliable knives allows you to easily process thick waste. A productive engine makes it possible to quickly direct sewage to the sewer riser.
Domestic hot water sewage pumps are also equipped with powerful blades that can easily process relatively small fractions of materials when they enter the toilet or sink.
Materials of production
For the production of functional elements that come into contact with liquid during operation, apply:
- Polymers are strong enough bases that make it possible to reduce the total cost of the units.
- Stainless steel - for exceptional durability.
- Cast iron - is characterized by the highest strength and reliable resistance to mechanical stress. The disadvantage of such structures is considered to be an impressive weight, which can make installation somewhat difficult in certain conditions.
Pumpsewer with grinder – installation
Before proceeding with the installation of equipment, it is necessary to pay attention to the diameter of the inlet pipe of the pump, which must correspond to the parameters of the sewer pipe that comes out of the toilet. If the sizes do not match, it may be difficult to create a tight connection.
Do-it-yourself sewer pump installation is done in the following sequence:
- Inlet pipes are connected to all inlet pipes of the unit. At the same time, a slope of 3 cm is observed for 1 m of length.
- The pump is mounted on the floor behind the toilet, placed in a statically installed container or built into a specially prepared opening in the wall. The structure is fixed with fasteners planted on plastic dowels.
- A sewer pipe is laid from the drain riser to the pump. If existing conditions require the installation of several interconnected pipes, their connections must be glued, welded or soldered to avoid leakage.
- If there is a need for vertical discharge of the sewer pipe, it is turned up from the inlet of the pump no further than 30 cm. Only in this case can one count on maintaining a stable pressure in the system sufficient for the efficient operation of the unit.
- The slope of the drain pipe is created, which ensures the drainage of sewage by gravity.
- The element for processing solid sewage is connected topower supply.
- The sewage pump with a grinder, the installation of which is completed, is being checked for operability. All joints and joints are inspected for leaks.
Installing a sewer pump in a well
Certain modifications of units with a chopper have been successfully used not only to reduce the likelihood of blockages in the sewer, but can also be used as an effective means for cleaning drinking water tanks.
Installation of the sewer pump in the well is as follows. To begin with, the pressure pipe of the unit is connected to a pipe that will be used when pumping water. You can cope with the task with the help of a clamp, the fastening of which is clamped with a screwdriver or pliers.
Dry installed sewage pumps contain a check valve that needs to be tested for function. The latter avoids the return of water to the tank during the pumping process.
Installation and fixation of the drainage unit are made on a flat solid surface. The pressure hose is placed vertically in the well. If necessary, it should be fixed to the walls of the tank, since the water pressure can be quite strong.
In conclusion, it is enough to immerse the end of the pipe for pumping liquid to the bottom of the well and connect the grinding unit to the mains. In order to avoid pump failure due to clogging with silt and large particles, it is recommended to purchasea special float that will act as a guide to determine the water level.
Features of operation
Pumping equipment with a mechanism for grinding sewage perfectly copes with the processing of personal hygiene products, fecal matter. However, some relatively low-capacity units are unable to dispose of truly dimensional solid waste. Therefore, in order to avoid a quick failure, it is worth monitoring the nature of the sewage that is processed by such equipment.
Devices that are installed in the kitchen and serve to grind waste that enters the wastewater through the sink, daily have to work with greasy sewage. In order to prolong the life of the pump, which is operated in such conditions, it is recommended to clean it regularly. If this requirement is not observed, the inside of the unit will be covered with an abundance of fatty deposits, and they will not only emit a stench, but ultimately lead to equipment failure.
How to prevent a malfunction?
If the operating rules specified in the technical documentation are not followed, the sewage pump with a chopper quickly becomes unusable. Most breakdowns are the result of frequent running of the unit "dry" or the result of clogging of the system with solid particles of a large fraction.
To increase the service life, it is enough to take care of the installation of automaticprotection of cutting elements and the engine of the unit. This is especially important when operating the pump in a country house, where there is an increased likelihood of branches and stones entering the sewer. In the absence of such protection, it will be necessary to carry out repairs and maintenance of equipment much more often.
Benefits
Installation of a sewage pump with a grinder facilitates the processing of relatively solid waste that is part of the sewage. As a result, the permeability of the formed mass through pipes of the smallest diameter increases.
Among other advantages of the equipment, it is worth highlighting the possibility of connecting to household appliances, which is located below the level of the sewerage pipeline. Thanks to this, it is possible to ensure effective removal of sewage from the sink or toilet bowl installed in the basement. Moreover, the power of most pumps is sufficient to operate plumbing equipment at a considerable distance from the riser.
Flaws
Functional grinder pumps also have some disadvantages:
- Operation of appliances is not possible in the event of a power outage.
- There is a need to perform frequent cleaning of the units connected to the sink due to clogging with grease.
- Costs are rising for the construction of a sewer system.
In the end
The sewage pump with a chopping mechanism is a fairly simple, but at the same time highly efficient equipment. When choosing a unit for servicing the sewer system of a private housespecial attention should be paid to the power and performance indicator.
Due to proper installation, operation in accordance with the requirements of technical documentation, timely repair and maintenance, sewage pumps for the home can serve for many years without the need to replace the main functional units and important parts.
