Fecal pump with grinder: selection tips and review of the best brands

Equipment for autonomous sewage systems must serve for a long time, operate without failure and not cause any problems with breakdowns.How to decide on the model and buy the most suitable fecal pump with grinder? After all, the list of responsibilities of this equipment includes not only pumping aggressive liquids, but also processing large organic particles.

For fans of country life, we will tell you in great detail everything about the design features and guidelines for choosing the right fecal pump. With our help, you can easily find and purchase the optimal model with the required performance and excellent technical characteristics.

The article presented to your attention describes in detail the types of fecal pumps and outlines their differences in design and operation. For potential buyers, a rating of models in demand on the market is given. The information is supported by photographs and video instructions.

Information about fecal pumps

Several types of similar technological equipment have been developed by industrial production and are produced on the consumer market.

In particular, future users are offered:

• submersible devices;
• semi-submersible devices;
• external devices.

Each of the fecal models differs in technical capabilities and is designed for specific pumping conditions.In order to select equipment on its merits, it is recommended to obtain information regarding the degree of contamination of the working environment, as well as information about the conditions in which the pump will be operated.

Fecal submersible pumps have found wide application in a variety of areas of the national economy. These same devices are actively used by owners of private country real estate

The submersible equipment is arranged in the form of a hermetically sealed structure, which, together with the electric motor, can be immersed in the thickness of the liquid medium. Semi-submersible fecal units are products in which only the pumping part is placed in the liquid.

Finally, external fecal pumps equipped with a grinder do not directly contact the liquid medium at all. Contact is made through a soft hose or a hard pipeline.

Submersible models with float

Submersible devices are designed for operation in liquid environments of varying degrees of contamination. The design of such devices is made so that the equipment can be lowered to a certain depth (usually no deeper than 10 m) and the liquid medium can be pumped directly from the depth.

Pumping equipment designed for pumping feces is used with no less success for other purposes. For example, to drain a construction site after rain or basements of buildings flooded by heavy rains

The submersible fecal pump works with a liquid medium of a certain temperature range (from + 1 to + 40 ° C).This type of equipment is designed to transport liquid media of various types. But it is always necessary to comply with the technical conditions and the operating parameters of the pump.

For example, submersible modifications with grinders successfully pump:

• liquid media with a high degree of viscosity;
• liquids with a high content of large and solid particles;
• sewage drains and contents of cesspools;
• contents of septic tanks and household cleaners,
• water from basements, storm drains, and various reservoirs.

Each model of submersible fecal pump is equipped with a control float mechanism. The purpose of this mechanism is to protect equipment from unintentional dry running.

That is, the equipment will not start working if the working area is not filled with the pumped medium. As the working chamber fills with liquid, the control float moves to the position that allows switching on, and the device starts.

This is what the design of a submersible type fecal pump looks like in the drawing. In the suction area, the shaft usually contains a chopper, thanks to which the pump cuts and pumps out associated debris along with water (+)

In addition to automatic on/off control depending on the presence/absence of the pumped medium submersible models have additional protection, so there is no doubt about the reliability of fecal pumps. This is the most optimal equipment that is recommended for use in private households.

Outdoor fecal devices

Equipment for external installation (surface pumps for pumping out feces) is most often used in industrial production farms. For private property, this type of fecal equipment with a grinder does not seem to be a very suitable choice. Meanwhile, there are developments specifically for households.

Externally operated devices pump wastewater from the depths of a sewer pit or well, while being above the level of the septic tank.

In order to lift a viscous liquid from a depth of several meters, the device must have a powerful electric motor and an efficient design as a whole. Therefore, external systems are usually bulky and equipped with a large electric motor.

Cantilever centrifugal pumps are used to service a local sewerage facility to which several households or a village are connected

Externally operated sewage pumps are traditionally characterized by a stationary installation. At the same time, it is necessary to place the equipment in such conditions that during further operation a normal ambient temperature and protection from precipitation are ensured.

Equipment in this design produces an increased level of noise during operation. Before you begin pumping out sewage or feces, the pump volute will have to be filled with “starting” liquid. Without first filling the snail with water, rare models of external fecal pumps with a grinder are capable of independently capturing liquid from the lower level.

Systems for internal sewerage of a private house

They have some relation to external fecal equipment domestic pumping stations for grinding and pumping feces. Especially those that are installed directly inside a private home. This type of equipment is used to organize forced sewerage, when feces are processed (crushed) using a pump and thrown into a septic tank.

The design of a fecal pump intended for installation in the internal sewerage system of a private house. Using such equipment, a system is created for the forced release of feces into a waste collection facility.

The design of such equipment is intended for installation on the line where feces exit directly from the toilet. The device is a rectangular product with inlet and outlet pipes. Inside there is a miniature pump powered by a 220 volt network. The device is also equipped with a filter element and chopper mechanics.

There are various models home fecal pumps. The difference between the models lies in the performance, the amount of pressure, as well as the temperature conditions the device is designed for (up to + 40 ºС or up to + 90 ºС). As an example of such equipment, we can note the Sanitop Silence model from the well-known company SFA.

Semi-submersible pumping equipment

Along with the first and second types of fecal pumps, there is an intermediate version - semi-submersible devices. This type of equipment also applies to permanently mounted devices, and the installation of semi-submersible systems requires a special approach.

Such designs conventionally consist of two modules – a driver and a pump. The driver (electric motor) is usually installed as an external module, at a level above the pumped waste. The pump module is lowered to the lower level and immersed in the liquid medium. The electric motor is connected to the pump through a flexible shaft.

Another type of fecal pumping equipment is a semi-submersible system. Refers to stationary type devices and is used mainly for the needs of the industrial and economic sector

Semi-submersible stationary systems have found successful use on farms and at centralized sewerage stations, where constant pumping of waste and wastewater is required. However, such equipment is unlikely to be suitable for use in the private sector.

We recommend that summer residents and owners of small country houses with a small number of residents familiarize themselves with the selection rules fecal pumps for summer cottages. In the article we have proposed, the technical capabilities of popular models are thoroughly analyzed.

Sewage pump grinders

Mechanical working elements - grinders - are an integral attribute of the fecal pump. The purpose of these elements is obvious: cutting, crumbling, dividing large and dense contents into small parts, which enters the pump along with the pumped liquid medium.

Different pump models are equipped with different shapes of grinders. Each manufacturer tries to achieve maximum effect. However, practice shows that changing the configuration of the chopper does not have a significant impact on the process. All grinders cope with the task quite successfully - they provide free passage of the pumped medium.

Typically, pumps contain grinders made like:

• impellers with blades-knives;
• cylindrical scissors-knives;
• cross-shaped cleaver;
• “meat grinder” type cutter;
• plate cutters.

Each type of cutter is practically no different from all the others in terms of efficiency. Another thing is the durability of the element. There is a direct dependence on the grade of steel.

This is what one of the design options for a fecal pump grinder looks like. The so-called “meat grinder” knife cuts large debris into small fractions up to 15 mm in size

Among the latest developments, the German design of the HOMA A-series submersible fecal pump, which uses an innovative grinder solution, attracts attention.

Equipment operating parameters

The power source for pumping equipment is usually a stationary electrical network. At the household level, the voltage is traditionally 220 V, but in industry and agriculture equipment with a voltage of 380 V can be used.

The following parameters are also important for the future owner:

• power (for domestic use 0.5 - 1.5 kW);
• productivity (150 – 600 l/min);
• height of the liquid column – pressure (10-20 m);
• operating fluid temperature (+1… +40 ºС);
• working environment temperature (+1…+40 ºС);
• degree of density of the pumped medium (up to 1200 kg/m3);
• acidity level of the working environment (Ph - not higher than 10).

Work with pumping equipment must take into account the specified parameters; moreover, for each individual model, the noted indicators can be expressed in specific values ​​that cannot be exceeded.

Review of the best brands

The modern market opens up wide horizons for the selection of fecal pumps equipped with grinders. Italian, German, Spanish and other equipment are offered to buyers, and each manufacturer offers an impressive range of models for sale.

Imported products, present in large quantities on the modern market. The main suppliers of fecal pumps are German, Italian, Spanish companies

Grundfos. Among the best manufacturers, the company takes first place in the ranking. The Germans have succeeded in the development and production of pumps for various purposes. There were also German ideas in the production of fecal equipment with a grinder.

Their Grundfos Seg model, made for professional use, is well suited for ordinary private households. Despite the cast iron body of the device, it is easy to transport from one place to another.

The electric motor of the device is equipped with a sensitive protection system against overheating and short circuits. There is a rotor speed regulator for the electric motor. With a maximum operating power of 0.9 kW it gives a head of at least 15 meters. Immerses to a depth of 10 meters.

The Grundfos brand is famous for producing a wide range of garden pumps. The line of submersible pumps presented to the buyer is dominated by models for pumping clean and dirty water

Gilex. German equipment attracts buyers with its technology, but alienates it with its high price. It was the affordable price combined with good quality that brought “Dzhileks Fekalnik” to second place.

The development of Russian engineers also falls into the category of professional equipment. The efficiency of operation and quality indicators in the work were appreciated by many users of this equipment.

"Dzhileks Fekalnik" is made of stainless steel. It can be submerged to a depth of up to 8 meters. The power of the device is 0.4 kW, and the productivity is 160 l/min. The reliable hermetically sealed housing, equipped with a thermal protection system, also makes it easy to maintain.

Herz. The next best representative of liquid pumping devices is another German invention, this time from the Herz company. The WRS25/11 model is in high demand due to its reliability, durability, and wear resistance. A special feature of the model is its design for use in extreme conditions.

Sewage pumps from the German manufacturer Herz attract with excellent performance, practicality and a wide range, allowing you to choose equipment for pumping any volume.

The development from Herz provides a capacity of up to 260 l/min, creates a pressure of up to 14 meters and can dive to a depth of 8 meters. The weight of the pump is 31 kg due to the cast iron body and steel working parts. The electric motor winding has insulation class “B”.

Vortex. The well-deserved fourth position in the ranking of the best is occupied by the “Vikhr” fecal pump.The FN-1500L model showed good results in operation. Efficient pumping and efficient shredding of large debris. Fully automatic control of the water level in the working chamber - switching on and off when the specified parameters are reached.

Device for pumping feces of the “Vikhr” brand. The pump equipped with a chopper is produced by a Russian company. The technique has received clear recognition from users. Demand for “Whirlwinds” exceeds supply

The pump is capable of lifting a column of liquid up to 18 meters. The productivity of the device reaches 24 cubic meters per hour. The throughput capacity for crushed particles is 15 mm. Maximum power – 1.5 kW. The material is the steel blade of the chopper knife and the cast iron body of the pump itself.

Calpeda. Fifth place in the ranking was taken by the Italian product Calpeda GMG, which surpassed even the Germans in price. However, the high cost of this equipment is compensated by its high reliability and durability. This model has one important detail - the presence of self-sharpening chopper knives.

A fecal pump with a self-sharpening grinder from Italian manufacturers is designed for operation in extreme conditions. The design allows immersion to a depth of up to 20 meters. During operation, a pressure of up to 40 meters is created. Productivity indicator – 16 cubic meters/hour.

A powerful device from an Italian manufacturer is the Calpeda GMG fecal pump with a grinder, which is equipped with a self-sharpening mechanism. Equipment whose service life depends only on the natural wear of parts

This is what the rating of the best pumping equipment from the group of fecal systems looks like. Of course, this list should be taken purely conditionally.The range of pumping equipment is very large, and only five models are not able to show the situation completely. But when choosing a pump for everyday use, it is quite logical to focus on the designated list.

Conclusions and useful video on the topic

Overview of the technical characteristics of the pump from the Polish manufacturer:

Fecal pumps containing a grinder in their designs should be considered technical equipment designed to serve not only for the benefit of industrial production farms. This equipment is necessary for any private household, as it has wide functionality for pumping out contaminated liquids.

You can talk about how you selected and used a fecal pump in the block below. Please write comments, ask questions about controversial and unclear points, photo dividers and useful information on the topic of the article.