How to choose a pump for pumping sewage: classification
If a country house is connected to a central sewage system, then its owners will have no problems. But in the presence of an autonomous sewage system, it is necessary to periodically pump out accumulated sewage from the cesspool or septic tank. To do this, you can use the services of aspenizatorskaya machine or purchase a pump for pumping sewage. It is to the second option that many owners of suburban real estate.
How to pump out the sewer
For pumping accumulated sewage, you can use a drainage or fecal pump. The first option is suitable if the dimensions of solid pollutants are no more than 5 cm (this indicator should be specified in the passport data, since it may differ depending on the brand and type of device). The drainage pump is suitable for pumping liquid from the pit, where household drains (washing machine, dishwasher, bathroom and kitchen) are drained, such devices are also used when pumping water from flooded basements or rooms.
Tip! If there is a lot of fecal matter in the drains, the drainage pump will not cope with them.
If contaminant particles over 5 cm are caught in the effluent, then fecal pumps should be used. They are available in various versions. Namely:
- For pumping cold liquids. Such devices are the cheapest. They are able to pump out sewage with particle sizes up to 8 cm and liquid temperature up to 40 degrees.
- For pumping hot effluent. Such a device is used in baths and in kitchens, where there are no large particles, and water can be hot.
- For pumping cold waste with a grinder. Such a device is most popular with buyers. It is able to cope even with large particles of the pollutant. It is most often used when pumping sewage from a sump or septic tank.
- Pump with a grinder for hot water. This is an analogue of the previous version, only able to cope even with boiling water. Such a device is used in baths equipped with bathrooms.
Fecal pump classification
Such devices can be of different types.
Outer. Installed near a septic tank or cesspool. Pumping occurs through the intake hoses.
Tip! Such equipment is not able to cope with large particles.
Submersible. Such a device is completely immersed in sewage. It can be equipped with a shredder. Such a pump is most in demand. Depending on the power, the equipment can be lowered to different depths. It is necessary to use devices - guides and restraints.
Semi-submersible. With this pump, only the electric motor remains outside, therefore it is necessary to use devices to keep the device afloat.
Tip! The grinder on the semi-submersible unit can not be installed. Therefore, its scope is somewhat limited by the size of solid particles of the pollutant.
Which to choose
The choice will depend on:
- sewage temperatures in a septic tank or cesspool;
- the presence of large particles;
- pumping depth.
Depending on this, one or another variety is chosen. The most popular submersible pumps with a grinder for cold drains. Most septic tanks and cesspools are used to collect sewage from the whole house, so there will be low temperatures and a lot of solid and large particles (feces).
In addition, when choosing a fecal pump, experts recommend paying attention to the following indicators:
- The material of manufacture. The submersible pump (and other varieties) will be in a very aggressive environment, so the housing and parts must withstand such an impact. The most suitable for this role plastic, stainless steel and cast iron;
- Impeller. For grinding large items need a reliable and durable mechanism. Many manufacturers use a cutting edge, but such a device is not as productive and reliable as cutting knives. Also on sale you can find pumps with self-cleaning shredders;
- Performance. It is this indicator, not power. Some models may have less engine power, but are able to pump more volume. This means that electricity is saved;
- Control method. Submersible or other types of pumps will be in a very unaesthetic place. Therefore, the method of their management should be convenient. As a rule, the remote control is located at a distance from the unit itself.
And, of course, do not forget about the manufacturer. It is best to choose a proven and well-established firm. With the help of the Internet you can find reviews about a particular model. You can also ask the neighbors or friends, what unit they use. After all, it is during operation that the most accurate opinion is formed.