How to choose a fecal pump with a grinder

Today, there are all sorts of technical solutions that maximize the automation of sewage. When you do not have the opportunity to connect the sewage system to the urban system, such equipment is simply necessary. For example, the fecal pump with a grinder is an integral part of the autonomous system. If you are on the verge of buying a fecal pump, first of all, you need to learn information about the performance and basic parameters of a particular model. In this article we will explain how to choose a fecal pump with a grinder.

Use of fecal pump

Basically faecal pumps with a grinder are used in living conditions for private houses, cottages and various establishments, where there is a massive gathering of people. In such places, the risk of solid and large particles getting into the sewage pipeline system increases. To prevent ingress and clogging of sewage pipes, similar equipment is installed.

One of the features of the use of faecal pumps with a grinder is the ability to pump water from reservoirs. This fluid may contain large particles, such as reeds, algae, and others. Moreover, they are used for industrial purposes or for draining basements and other structures. In short, the fecal pump with a grinder serves a large range of areas for domestic needs and, accordingly, technical. The most important thing is to determine the exact choice. After all, there are several types of them, namely:

• Submersible.
• Outer or surface.
• For cold drains.
• For hot drains.

 We will consider only the first two types of pump, submersible and external.

Submersible fecal pumps

As for submersible fecal pumps, they work ideally not only in clean, but also in dirty water. Based on their name, they are immersed to a relatively small depth, up to a maximum of ten meters. This figure will be affected by the pump model. It can pump out the liquid with a temperature of up to + 40 ° C. In most cases, they are used for technical needs. For example, for maintenance of reservoirs, cleaning of sewage tanks or for cleansing the basement from already processed fecal masses.

Almost all models are fully protected from damage, so to speak, in a dry run. For long pump operation, this is a very important requirement. A float switch is used for this purpose. Through it, the pump is operated in automatic mode. Moreover, by means of this device it is possible to independently establish a specific mode of switching off and on the pump. Accordingly, using several modes of installation of the float, it turns on only when the wastewater arrives and vice versa, after pumping the pump off. On this basis, it is much more convenient to use the autonomous sewage system at home.

However, protection against dry running is not only the function of the float switch. For additional and at the same time reliable protection, a double winding or shaft seal is used, located near the end connection in the pump itself or on the motor side of the pump. The space between the seals is filled with oil. Thanks to the oil, the pump can work without liquid for some time.

Tip! Such pumps are exclusively installed vertically. This is important, since the cutting element integrated on the side of the nozzle for suction ensures a sufficient inclination angle for the unhindered and most efficient operation of the unit.

As for the manufacture of a submersible pump, its body is made of cast iron. Cast iron itself can be coated with stainless steel or treated with a special anti-corrosion compound. Inlet and outlet connections allow you to connect a flanged or threaded connection. At the entrance to the suction inlet is a cutting element. For convenience during transportation to the pump attached handle. Almost every manufacturer of submersible fecal pumps produces products from reliable and durable material class E.

External fecal pump

Based on its name, this unit is installed on the surface. Usually they are installed behind the toilet or under the sink. The main requirement - it should not interfere. For example, such pumps may be a variety of pumping stations. There is also a model of simple pumps with the presence of the cutting tool. These devices are good for outdoor use. For example, they are ideal for pumping out water in a pond. Their use is as justified as possible. Why? For their main task, they do an excellent job. Moreover, besides crushing toilet paper, plastics, and soft food waste, pumps can easily cope with small pebbles, hard algae, and even pieces of glass.

Due to the effective operation of the cutting tool, all insoluble elements turn into a small mass. Separately, it should be noted the stability of the equipment in relation to the aggressive environment. Pumps can pump chemical, oil and sand liquids. Here is the main characteristic of the external fecal pump with a grinder:

•  Depending on the model, the outdoor pump can lift water from a depth of 30 meters.
• The grinder is able to pass particles of O up to 50 mm.
• The maximum volume of pumped water is up to 300 m3 / h.
• It does its job well at 220 V.
• For the most efficient operation, electricity up to 3 kW is required.

Tip! As for the cutting tool, it is made of stainless steel. External pumps are very convenient to transport, if necessary, from one place to another. A compact size and stability allow you to install almost anywhere.

Installation

Unlike other types of pumps, faecal have their own characteristics in the structure, as well as in the process of their installation. So, when installing the pump, you must take into account the fact that any liquid that is processed by the fecal pump is aggressive. It will always contain one of these substances: acid, alkali, salt, chemistry, organic poisons, and others. It is for this reason that all the wires connected to the pump casing, the outlets and inlets should be protected as much as possible from any penetration of liquid, that is, they should be properly sealed.

Tip! Installation of equipment is required to be made in places accessible only for maintenance.

As a rule, all the required spare parts for mounting the pump on a particular surface are included when buying a pump. If necessary, additional connections for installation are purchased separately. If you are installing a submersible fecal pump, it will be more efficient to use gripping guides by attaching a cable to them. Then lower the pump to the required depth. Under his weight, he firmly pressed against the hole in the nozzle.

Tip! To increase the period of operation, when installing the pump, it is recommended to use automatic protection for cutting elements, electric motor and other important details. This is especially important in those places where there is a risk of permanent falls of stones, branches and other solids. If you do not make such protection, then the important parts of the unit will be broken. The entire installation can be performed according to the instructions of both the submersible pump and the outer pump, respectively.

Popular brands of grinder pumps

Visiting a plumbing store to purchase a pump, you will find a large variety of them. Now consider the three most popular models of faecal pumps: Grundfos SEG, Homa Barracuda and Sprut.

Grundfos seg

This type of pump has the following features:

• Unique connection by a collar.
• Impeller adjustment system.
• Modular design.
• Cutting mechanism.
• Thermal sensor in the stator winding.
• Cable connector.
• Availability of ball bearings.
• Cartridge cartridge seal.
• Lifting handle.

Homa barracuda

The Homa Barracuda GRP 36 DA pump has the following characteristics:

• Permissible immersion depth of 10 m.
• Motor 3.7 kW.
• The cutting elements are made of stainless steel.
• Permissible pumping temperature up to + 35 ° C.
• Productivity is up to 24 m / h.

Sprut

This type of pump is the most economical and at the same time efficient. Here are its main features:

• Permissible pumping temperature up to.
• The density of the processing of faeces is 1100.
• The size of permissible passing particles is O 35 mm.

After carefully reading our article, you can make the right choice of a fecal pump with a grinder for the sewer system of your suburban area. It is important for us to know how much this article has helped in your choice. Leave your comments.

Video

Watch a video about fecal pumps with a cutting element: