Is it better to have a single pump or a double pump for the sewage lifting device, for domestic use?

It mainly depends on how much you use in the bathroom, if it is a household, you can consider the Zede kompaktboy single pump series.

The 55-liter large water tank volume effectively reduces the number of starts and stops of the machine;

More efficient vortex pump, lower working noise;

It comes with a check valve to effectively prevent sewage from backflowing;

External LCD controller and alarm, more convenient operation;

The external motor is not in direct contact with sewage, which has a longer life and is more convenient for maintenance.

If the number of bathrooms is only one or two, I recommend that you single pump series, as long as the domestic garbage is not discharged into the equipment, if the quality requirements are high, there is also cost control for **, you can use a set of single grinding, 150L power failure does not affect the use, if the number of toilets is particularly large you use double pumps, when one of the pumps fails, it does not affect the operation of the other, P682XPRG, the configuration of this equipment is very high, double grinding.

The sewage lifting pump is also divided into those containing fecal wastewater and those without fecal wastewater, and the small model that discharges fecal wastewater is generally a cutting model or a diameter of more than 50 mm. Therefore, if you want to discharge wastewater containing toilets, you must choose it well when choosing. This kind of lifting equipment is still relatively mature, try to choose the pump external are better, the external maintenance of the pump is convenient, some brands of competition to use the simplest process to directly drop the pump in the tank inside the pump built-in is the most irresponsible, this kind of later maintenance once their own sad for a year.

The external water pump is very convenient, and there are no such problems. The good brands have Zede from Germany, and the original imported from Germany are all pumps, and the technology is very advanced.

Although the process is more complex than the built-in pump, Sun Shen and Zheng Tang, the service life will be longer than the built-in.

Basement drainage refers to the introduction of stagnant water, rainwater and other sewage inside the basement into the external drainage pipe to achieve the purpose of drainage. In some high-rise buildings, commercial buildings and residential areas, basement drainage works have become an indispensable project. And for basement drainage, the use of sewage lift pumps has its own unique advantages.

First of all, the sewage lift pump can raise the water level height. When the outlet of the basement is lower than the external drain pipe, the sewage lift pump can lift the stagnant water from the bottom into the pipe through the action of the pump. In this way, it can effectively avoid the problem of water accumulation in the basement, reduce environmental pollution and health hazards.

With its dry and secondary, the sewage lift pump is able to cope with different types of sewage. Wastewater in the basement usually includes domestic sewage and rainwater, and these sewage will carry high levels of solid particles, sand and other impurities. Ordinary water pumps cannot handle these impurities, making them prone to clogging during use, but sewage lift pumps can treat these sewage very well and pump it out of the basement.

Thirdly, the sewage lift pump can be operated automatically as needed. In basement drainage engineering, the use of sewage lift pumps for drainage treatment usually takes into account the combined effect of multiple factors, such as the pressure of external drainage pipes, the amount of water accumulated in the basement, etc. When these factors change, the sewage lift pump can operate intelligently through the automatic control system to ensure the stability and safety of the basement drainage project.

Finally, the wastewater lift pump has the advantage of convenience and low maintenance costs. The use of sewage lift pumps in basement drainage projects not only saves space, but also reduces engineering costs. At the same time, the maintenance cost of the sewage lift pump is also relatively low, such as the sewage pump of Zhiliu further saves the cumbersome manual maintenance, and the backcleaning system will regularly start the automatic maintenance of the environment inside the water tank to ensure the normal operation of the machine, which is not yet possible to do with other sewage pumps.

In summary, there are many advantages to choosing to use a sewage lift pump in basement drainage projects, which can not only solve drainage problems, but also reduce environmental pollution and maintenance costs. For large buildings, commercial buildings and residential areas, the use of sewage lift pumps has also become an important basement drainage solution.

I am a plumbing and drainage engineer with 7 years of experience in real estate development. Recently, the company is developing a villa project, a total of 56 buildings, each basement sewage system due to the drainage height difference, need to buy a sewage lifter for the villa basement. Coincidentally, as early as 6 years ago, not long after I joined the workforce, when the company was developing an integrated commercial project, I came into contact with sewage lifters.

Because of the large number of purchases, the company's technology and procurement department attaches great importance to the selection of sewage lifters, we have collected a lot of information, visited a lot of installation sites, and asked the opinions of the design institute.

In the sewage lifter product, there are two types of relative positions between the pump and the storage tank. The pump is outside the water storage tank, which we call an external pump; The pump is inside the water tank, and I call it a built-in pump.

The cost of an external pump is higher than that of an internal pump, due to the high assembly accuracy between the pump and the box and the requirements for waterproof sealing performance. External pumps are often also equipped with backwash pipes to flush out and remove the dirt deposited in the tank. In the machine that pumps sewage, it is inevitable that there will be dirt residue, and even sometimes the foreign object accidentally falls into the machine and will cause the pump to fail to work normally, so another major advantage of the external pump is:

No cleaning and maintenance, even if the pump cannot be normal due to foreign matter entering the water tank, it only needs to be troubleshooting outside the machine, and people do not have direct contact with sewage.

The sewage lifter with built-in pump is relatively low in cost. The pump is placed inside the water storage tank, and only the pump and the outlet line need to be connected, and there is no problem of assembly between the pump and the water tank. The pump is in the water storage tank and is generally not equipped with a backwash pipe.

If it comes to cleaning and maintenance, it will be more troublesome. Inevitably, the water storage tank will be opened for treatment, and the dirt will come into direct contact with people, and the pump will not work properly due to foreign matter. That's the downside of built-in pumps.

Of course, there are also advantages to the built-in pump, because the pump is placed in the water storage tank, so the sound will be lower than that of the external cleaning pump.

Through the analysis of advantages and disadvantages, we pay more attention to the benefits of external pumps, so as to reduce the trouble of later use and maintenance. Regarding the problem of sound, we carefully inspected many manufacturers, and purchased imported sewage lifters, and the pumps of imported sewage lifters run with lower sound, even if the pump is external, the sound does not rise significantly; Moreover, the characteristics of the sewage lifter are intermittent work, and the time of each operation is usually between a few seconds and more than ten seconds, and it is usually in a standby state.

After comprehensive analysis, we finally decided to purchase an external sewage lifter.

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The built-in pump sewage lifter is the pump, and the control equipment are installed in the collection tank; Although the pump and control equipment of the external pump sewage lifter and the water collection tank are a set of systems, they are installed separately outside the water collection tank. Because the motor and control equipment are installed in the water collection tank, the built-in pump sewage lifter has the shortcomings of low safety, poor sealing, small water tank volume, and high difficulty in maintenance when used, and the built-in pump is strictly forbidden to be used for discharging sewage containing feces in Europe. There will be no such problems for external pumps, but it will be more expensive.

Before this question, let's briefly understand the difference between these two types.

Built-in pump: similar to the old-fashioned sump + sewage pump, but the sump is turned into a plastic, stainless steel and other material water tank, the pump and float controller need to be slow to soak in the sewage to work, which is the dust extension and improvement of the traditional drainage method.

The built-in pump also has two prominent problems:

1.When the built-in pump is working, there is a high chance that it will be stuck by impurities such as toilet paper and hair, resulting in the pump not working normally, and eventually leading to the overflow of sewage in the box;

2.Once the pump fails and needs to be repaired, the pump and float level gauge need to be removed from the sewage, and the smell is pervasive and difficult to start.

Therefore, the built-in pump is generally not used in the toilet, but is often used in the bathroom, toilet, laundry room, kitchen and other places.

External pump: As the name suggests, the sewage lift pump is located outside the tank, and it generally adopts pressure control, and the controller part is also outside the water tank, and the general problem can be dealt with without opening the sewage tank. Therefore, compared with the built-in pump, the external pump will be safer and more stable, convenient to maintain, but at the same time, the cost will be higher and the volume is generally larger.

If you have a good budget at home, it will be easier to choose an external sewage lifter.

Built-in pumps and external pumps are not absolutely good or bad, and only by choosing for different places, sanitary ware, and different customer budgets can we clearly understand the difference. In a word, there is no best, only the most suitable.