A submersible sewer pump with a grinder is also known as a fecal pump. Such equipment allows automatic processing of sufficiently coarse solid particles of wastewater, which significantly reduces the likelihood of clogging of the sewer.
The device and principle of operation
Sewage pumps for the home are mechanisms whose operation contributes to the formation of an excessive level of pressure in the system. This, in turn, allows for the forced removal of sewage.
As soon as wastewater crosses the permissible limits, a submersible sewage pump with a grinder pumps them out while crushing solid particles. As a result, sewage turns into a liquid homogeneous mass.
Since such systems have to inevitably come into contact with moisture due to their duty, it is recommended to install a sewage pump made of materials that can withstand 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 grinder plays a decisive role here, which helps 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 drain tank. When draining sewage, it enters the pump casing, where it is processed with 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 into the housing.
Where is a sewer pump better ? 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 installing such units. Moreover, 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 raise recycled sewage through pipe connections in the vertical direction by 10 m, and horizontally by more than 100 m.
Types
Household sewer pumps with a grinder are conventionally divided into separate categories:
- Semi-submersible and submersible.
- External for the treatment of hot wastewater.
- Outdoor for working with cold waters.
The installation of a submersible and semi-submersible sewage pump allows efficient pumping of clean water and sewage with fine particles with a temperature of up to + 40 ° C.
Equipment for working with cold wastewater is used to drain liquids from toilets, sinks, septic tanks and showers. Similar models are presented in the form of the most compact capacities. 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 sewage pumps for working with hot wastewater are also equipped with powerful knives that easily process materials of a relatively small fraction when they enter the toilet or sink.
Materials of manufacture
For the production of functional elements that come into contact with the liquid during operation, the following are used:
- Polymers are a fairly strong foundation, which makes it possible to reduce the total cost of units.
- Stainless steel - provides a particularly durable equipment.
- Cast iron - characterized by the highest strength and reliable resistance to mechanical stress. The disadvantage of such structures is an impressive weight, which can make installation somewhat difficult under certain conditions.
Sewer pump 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 leaves the toilet. If the sizes do not match, it may be difficult to create a tight joint.
Do-it-yourself sewer pump installation is carried out in the following sequence:
- The supply pipes are connected to all inlet nozzles 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.
- From the drain riser to the pump, a sewer pipe is laid. If existing working conditions require the installation of several interconnected pipes, in order to avoid leaks, their connections should be glued, welded or soldered.
- If there is a need for a vertical discharge of the sewer pipe, it is turned upward from the pump inlet by no more than 30 cm. Only in this case can we count on maintaining a stable pressure in the system sufficient for the efficient operation of the unit.
- An inclination of the drain pipe is created, which ensures drainage by gravity.
- The solid waste treatment element is connected to the power supply.
- Sewer pump with a grinder, the installation of which is completed, is checked for operability. All joints and joints are inspected for leaks.
Installation of a sewage pump in a well
Separate modifications of units with a grinder are successfully used not only to reduce the likelihood of clogging in the sewage system, but can also be used as an effective tool for cleaning reservoirs for drinking water intake.
Installing the sewage pump in the well is as follows. To begin with, the discharge pipe of the unit is connected to the pipe, which will be used when pumping water. You can cope with the task with a clamp, the fastening of which is clamped with a screwdriver or pliers.
Sewage pumps of a dry installation contain a check valve that needs to be checked for operability. The latter avoids the return of water to the tank during the pumping process.
Installation and fixation of the drainage unit are carried out on a flat, solid surface. The pressure hose is placed vertically in the well. If necessary, it should be fixed on the walls of the tank, since the pressure of the water 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 damage to the pump as a result of clogging with silt and large particles, it is recommended to purchase a special float, which will serve as a guide for determining the water level.
Operational Features
Pumping equipment with a mechanism for grinding sewage perfectly copes with the processing of personal hygiene products, fecal matter. However, some relatively low-power aggregates fail to utilize truly solid solid waste. Therefore, in order to avoid a quick failure, it is worth monitoring the nature of the sewage that is being processed by such equipment.
Devices that are installed in the kitchen and are used to grind waste entering the waste water through the sink have to work with greasy sewage daily. To prolong the life of the pump, which is used in such conditions, it is recommended that you regularly clean it. 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 stench, but will ultimately lead to equipment breakdown.
How to prevent a malfunction?
In case of non-compliance with the operating rules specified in the technical documentation, the sewage pump with a grinder quickly deteriorates. Most failures are the result of frequent start-up of the unit “dry” or as a 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 automatic protection of the 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 getting into the sewer. In the absence of such protection, it will be necessary to repair and service equipment much more often.
Benefits
The installation of a sewage pump with a grinder facilitates the processing of relatively solid wastes that make up the wastewater. 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 ability to connect to household appliances, which is located below the level of the sewage pipeline. Due 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.
disadvantages
Functional pumps with a grinder have some disadvantages:
- Operation is not possible in the event of a power outage.
- There is a need to perform frequent cleaning of units connected to the sink due to clogging with fat deposits.
- Increases costs in the arrangement of the sewer system.
Eventually
A sewage pump with a grinding mechanism is a rather simple, but at the same time highly efficient equipment. When choosing a unit for servicing the sewer system of a private house, special attention should be paid to the power and productivity indicator.
Thanks to the implementation of the correct installation, operation according to the requirements of technical documentation, timely repair and maintenance, sewage pumps for the house can serve for many years without the need to replace the main functional units and important details.