Sewage Pumps for Sewage Systems – Which One to Choose
When building a country house, a sewer system must be installed. This is necessary to supply water to a filtration field or septic tank. There are various drainage designs that operate with both gravity and forced-flow liquid pumps. Various sewage pumps are used for this purpose in sewer systems. This is an important question.
Contents of the article:
- Using fecal pumps for sewer pumping
- Design and operating principle of a fecal pump
- Principle of operation and technical characteristics of the pump mechanism
- Types/varieties of fecal pumps for sewerage
- Rules for using the equipment
- Major manufacturers of fecal pumps
- Installing a fecal pump
- How to choose a fecal pump for sewerage
Using fecal pumps for sewer pumping
Two types of pumps are used for pumping wastewater: waste and fecal. The differences between them are small but significant.
The former is used for pumping dirty liquids where the solid object is less than 5 cm in diameter. A metal mesh is installed at the pump inlet to protect the working parts of the mechanism. Sewage is noticeably different and is a thick liquid containing fibrous matter such as wool, hair, or fabric. It quickly becomes clogged, and the pump stops working. For this reason, grinders are installed on sewage pumps.
Sewage Pump Design and Operating Principle
Design and operating principle of a fecal pump
Pump Design
Pump design
Frame. Made of stainless steel, cast iron, or plastic. Considering the mechanism operates in aggressive environments, stainless steel housings are preferable;
- Rotor and Stator. Components of the pump motor;
- Shaft. Transmits rotation to the working element;
- Seals. Protects the interior of the mechanism from aggressive substances;
- Turbine. Pumps wastewater from the absorption unit to the pumping unit.
- The mechanism is equipped with brackets for attaching hoses and cables.
Operating principle and technical characteristics of the pump mechanism
Principle of operation and technical characteristics of the pump mechanism
Pressure injection is only necessary if the piping system is located below ground level (basement or semi-basement). In this case, wastewater cannot enter the septic tank from the collector and must be forcibly pumped out.
The daily volume of fecal water and the technical characteristics of the pump are important here.
Productivity – the amount of waste that the mechanism can pump in an hour (for example, 100-200 l/hour);
- Power consumption – sufficient for use in a country house with less than 400 times of use in a country house;
- The height of the column (the pump is not lower than the soil level) or the immersion depth of the mechanism – the maximum immersion depth is 15 m for fecal pumps;
- Mains voltage in the house; It is recommended to install a pump with an operating voltage of 220 V.
- The characteristics of the equipment used for pumping fecal water are varied, but in each case it is possible to select the optimal parameters of the device.
Sewage pumps types/types/varieties
Types/varieties of fecal pumps for sewerage
The obedient mechanism is made of durable materials and requires a float mechanism to turn the device on/off. The pump has a sealed housing, and all connections are equipped with gaskets that protect the internal parts of the device from exposure to aggressive environments. They are primarily used for cesspool drainage, but are also suitable for storm drain pumping. They can solve many problems, and underwater
fecal pumps Can also be used for drains in the garden. They are installed at the bottom of the tank and attached to the suction pipe. The float switch can turn off the device in time and turn on after the capacity is wasted (this can lead to a fire in the pump). The suctioned feces help cool the mechanism. Submersible cleaning pumps are very reliable devices the transmission mechanism differs in that the diameter of the outlet pipe is smaller. Solid inclusions as small as 15 mm can be pumped out by drains. However, they must be equipped with a device for grinding solid inclusions. For this reason, they can be used for pumping drainage. The transmission mechanism is mainly installed on a floating platform, which is always at the same level with the pumped liquid. In this device, the lower part of the pump is always immersed in liquid, and the upper part is in the air.
The surface pump is located outside the container with fecal drainage. For this reason a protective housing is required. These mechanisms are inaccessible and can pump out wastewater with solid inclusions with a diameter of up to 5 mm. However, the long service life and low cost of the device make it attractive to private owners.
Domestic sewerage plants are used to pump fecal water and can solve several problems.
It is capable of pumping out fecal water along with water from the rest of the water supply system installed below the sewer level. Such pumps can lift drains to a height of up to 15 m. This allows you to install household plumbing in basements or cellars;
- With the help of these devices, wastewater and fecal matter can be transported over a distance of up to 100 m, without thinking about providing the necessary slope. Seasonal ground movement problems are not serious and long sewer pipes can be converted;
- To obtain a homogeneous mass of fecal waste, large complex grinders can be used. This allows you to lay sewer pipes with a diameter of 40-50 mm;
- With these pumps, you can install carbon filters that prevent unpleasant odors from appearing in the room.
- To select a suitable pump, consider:
At what depth is the sewer system located and are there any differences in the height of the laid pipes;
- Type of wastewater – composition of inclusions and temperature;
- The number of drains that need to be pumped out;
- The need for automatic operation and an appropriate pump control method.
- Small indoor fecal plants, they do not require much space.
Feces grinders
Fecal grinders
In addition to grease, food debris ends up down the drain and out of the kitchen sink, causing it to get sucked into the pipes;
- Animal hair, hair and fibrous materials when laundry comes from the washing machine and sink. Combining with fat, they form a dense blockage;
- Toilets, tampons, all types of napkins and papers end up in the sewer system.
- All this waste must be processed using a shredder. The device works like a simple meat grinder. The device itself acts as an auger that moves the crushed material. Taking into account the properties of the processed waste, the grids and knives of the mechanism are made of high-strength stainless and alloy steel.
Several types of knives are used.
Impellers with blade knives;
- Knife-type meat grinders;
- Cylindrical scissors;
- Cross secateurs;
- Blade shaped knives.
- It is important to ensure that no stones or similar objects get into the grinder. Otherwise, the mechanism may break.
Selecting a fecal pump
Choosing a fecal pump
Supply voltage. This affects the amount of electricity required to pump wastewater. Typically, 220 volts are used at home, but pumps rated for 380 volts can be purchased;
- For such devices, the power consumption must be at least 400 W. This directly affects the pressure of the pumped wastewater required to overcome the resistance of the pipeline contents;
- For submersible pumps, the possible immersion depth of the device must be taken into account. For outdoor installations – the permissible length of the receiving hose;
- The performance of the mechanism is important – the amount that can be pumped in a certain time. It should not be less than the calculated incoming drainage rate. In most cases, a pump power of 400 W is sufficient to discharge 80 to 100 liters of wastewater per minute;
- Condensate removal units must always be equipped with an automatic on/off device. Protection against motor overheating, short circuits and electrical faults is required. To make it impossible for waste water to flow back, it is necessary to install a check valve.
- It is important to consider the reputation of the equipment manufacturer. Currently, there are many counterfeit copies of equipment from reputable and well-known manufacturers on the market. For this reason, it is necessary to examine the origin of the pump and all product quality certificates.
Rules for using equipment
Rules for using the equipment
The same applies to cases where the equipment is used for purposes other than its intended purpose. For example, it is dangerous to pump condensate together. The reason for this is that the pumped liquid contains a lot of hard stones. In a coffee grinder, these particles can damage the blade and prevent the pump from working properly.
Before you start using the fecal pump, you must thoroughly study the operating procedure. Failure to do so may result in premature termination of your equipment warranty.
Main manufacturers of fecal pumps
Major manufacturers of fecal pumps
Pedro rocks. The mechanism of this brand is used for pumping very dirty wastewater. The most common type is the VXm MC/MCm line. The first of them are less powerful. The power of the pumps is 0. 6 kW, since they require power from a 220 volt network. These are the most common devices for pumping out fecal water in private homes. According to the instructions, they are allowed for pumping drains with a maximum solid element size of 35 mm. Technical characteristics of the equipment:
Voltage 220-380 volts;
- The maximum liquid level to the bottom of the tank is 40 mm;
- Device productivity 15 – 66 l/h;
- Pumps of this brand can be submerged to a depth of 8-22 m;
- The diameter of the outlet pipe is 1. 5-2. 5 inches.
- Grundfosseg sewage pump. The unit is equipped with a grinder and is designed for pumping sewage, drainage water and non-waste materials. It can pump wastewater over considerable distances, but the pipe size is limited to 40 mm.
Main characteristics of the equipment:
Body material – cast iron;
- The pump is equipped with an impeller adjustment system;
- 2 Installed relay to protect the device from overheating;
- Used for pumping to a depth of up to 10 meters;
- The maximum permissible pump fluid temperature is 40 degrees Celsius.
- Dilex fecal pump. The company produces two types of pumps – false drainage and drainage, the name indicates their purpose. The permissible size of solid inclusions is 35 mm.
Main technical characteristics:
Capacity 160-260 liters per;
- Immersion depth – 6-11 m;
- Installation of a float switch.
- Sulzer pump. These are stations for pumping fecal wastewater, which is simultaneously processed into a liquid expansion state. Their advantage is the speed of installation and startup. The stations are equipped with reliable check valves and powerful solids grinders.
The vortex of the fecal pump is designed for pumping out wastewater with heavy fibrous contamination. Used for domestic purposes. Main technical characteristics:
Power 450-1500 W;
- Pressure 9-18 meters;
- Productivity 16-24 per cubic meter;
- Solid inclusions measuring 15-42 millimeters are allowed;
- The permissible liquid temperature is 40 degrees.
- Forced pumping Pumping wastewater is often a forced decision that is influenced by the surrounding landscape.
Installation of a fecal pump
Installing a fecal pump
Pump installation
Pump installation
Important! Consider the temperature of the wastewater. A dishwasher or washing machine in the kitchen should use a pump designed to pump hot liquids.
When installing a fecal pump, you should follow a few simple rules
Connect the mechanism to another electrical panel;
- Modify the mechanism;
- The external fecal pump is attached to the end of the container with a drain;
- The submersible pump must be lowered directly to the bottom;
- The pump is semi-submersible – installed so that the top is on the second floor, and the working mechanism is lowered into the liquid.
- Installation of the device in toilets is characterized by the use of a larger diameter sewer pipe, and the pump must be equipped with a grinder – toilet paper and feces must be crushed. The mechanism should be located at a distance of no more than 40 cm from the toilet.
After final installation of the pump and connecting it to the electrical network, you should test the equipment and adjust the operation of the float switch depending on the liquid level. Evinity fills water to a minimum level, which is the shut-off point. Then water is poured in until the pump turns on. If you notice any noise or problems with the equipment, it is recommended that you correct them immediately. If there are no comments, the well must be tightly closed.
How to choose a fecal pump for sewage
How to choose a fecal pump for sewerage
The mechanism will function for a long time, given
Required performance;
- Diameter of sewer pipe;
- Total volume of wastewater;
- Pump immersion depth;
- Pressure;
- Type of mechanism;
- Pump power supply;
- Additional options – chopper; fluid volume control;
- Manufacturer of products.
- Maximum head
Maximum pressure
Suction/immersion depth
Suction/immersion depth
Power
Power
Operating temperature
Operating temperature
For cold wastewater – the liquid temperature does not exceed 45 °C;
- For hot wastewater – liquid temperature up to 90 degrees Celsius.
- When entering the sewer system, only cooled liquids are used; it is better to use models designed for cold water, but it is not prohibited to install pumps for hot water (but they are more expensive). These pumps are used in private homes. Hot water enters the sewer system from washing machines and dishwashers, as well as during an emergency discharge of coolant from the heating system.
Automatic control
Automatic control
FLOAT – an element that determines the height of wastewater in the container, which allows you to turn the device on and off in a timely manner;
- Thermallera is a device that operates when the electric motor heats up significantly. This allows you to turn off the power to the pump in a timely manner, avoiding overheating.
- To reduce the risk of clogging the pump in a coffee grinder, manufacturers sometimes independently clean the device from large particles in the grinding mechanism. This increases the service life of the equipment without shutdown or interruption in operation. Self-cleaning grinders further reduce the risk of motor overheating.
The most efficient and most reliable fecal pumps are devices with a metal body and working parts. Stainless steel and cast iron are used for this. Plastic products are cheaper, but fail faster when working in aggressive environments.
Sewage pumps – which one to choose
