The operation of any sewer system is based on the laws of physics. Used water moves under the influence of gravity along the risers, enters storage tanks, and then is discharged into the general pipeline. The uninterrupted operation of such a system is due to the correct slope of the pipes and the requirements for the length and angle of inclination of the underwater pipes.
Despite the simplicity and functionality of gravity sewerage, there is only one, but very significant drawback. These are difficulties when remodeling premises and placing plumbing fixtures. In such systems, water can only move downwards, so it will not be possible to allocate the basement of a private house for a sauna or laundry: you will need to build an additional septic tank, which is not always advisable.
In these cases, the optimal solution to the problem would be to install Sololift2 Grundfos sewerage pumping units. Such systems forcefully drain water in the direction desired by the home owner.
A few words about Sololift markings
When choosing a pumping unit, you need to pay attention to the product labeling. This nuance determines the installation location, functionality and everyday tasks that can be solved using the equipment.
The manufacturer uses capital letters of the Latin alphabet to label products. It looks like this:
- WC – these models have a built-in grinding mechanism. The station is designed for the removal of black (fecal) waste and can be connected to floor-mounted toilets.
- CWC - this category of equipment is also equipped with a grinder and is designed for the removal of fecal waste. However, such models are designed for wall-hung toilets.
- C and D – pumps for removing gray (fecal-free) wastewater, suitable for any plumbing fixtures except toilets.
In addition, the marking of each product includes a numerical designation: 1-3 . This indicates the number of additional outlets in addition to the main drain. Essentially, the numbers indicate the number of plumbing fixtures connected to the pump.
How does the drainage system work?
Sololift2 Grundfos sewage pumping stations are equipped with an electric motor and a liquid level sensor. In addition, the structure is made of composite tanks, the storage tank has spherical walls, and the bottom is inclined in the direction of the pump.
This design and layout option minimizes the likelihood of sediment forming on the bottom and walls of the tank. The sensor ensures that the engine turns on only when necessary, which saves energy.
The principle of operation of pumping stations is as follows: wastewater flows into the tank and reaches the control level. The sensor gives the engine a start command, and the liquid is pumped into the public sewer system. When the level drops to the set values, the motor turns off and the pump stops working.
Design and equipment of a sewer pump for a sololift toilet
The Sololift forced sewerage pump consists of a reservoir, the inlet diameter is 100 mm, this is convenient for connecting a pipe with a cross-section of 110 mm, the minimum height to which the water jet can be raised is 5 meters.
- The station consists of the following elements:
- storage tank;
- submersible pump;
- reverse valve;
- filters and receiving filtration system;
- impellers with cutting edges - it is installed to grind solid waste that can clog the sewer line.
Application area
Depending on the marking and purpose, Sololift2 Grundfos pumping units are used for pumping out black and gray wastewater in rooms where it is impossible to use gravity sewerage. In addition, the equipment is ideal for draining water in bathrooms located below the sewer level.
If we talk about connected elements, the pumps are suitable for the following types of plumbing equipment:
- Baths.
- Wall-hung and floor-mounted toilets.
- Bidet.
- Showers.
- Sinks and washbasins.
- Washing machines.
Thanks to their compact dimensions, pumping stations are built into wall and floor structures, and therefore do not spoil the interior.
About pumping stations intended for water supply, read the article about the series of equipment from Grundfos >>>
Types of compact sewage pumping units
Currently, Sololift Grundfos products are represented by 5 models . Pumping stations with the following markings are suitable for installation in bathrooms:
Pumping unit Sololift2 WC-1 for pumping wastewater from washbasins and toilets
Pumping unit with a power of 620 W, a liquid reservoir of 9 liters. The model is standardly equipped with a chopper and has a throughput capacity of 149 l/min. In addition to the main plumbing fixture (floor-standing toilet), it can be connected to a sink or urinal at the user’s choice.
| Net weight | 7.3 kg |
| Tank capacity | 9.0 l |
| Flexible pressure pipe | ∅22/25/28/32/36/40 |
| Connection to toilet | Toilet with horizontal outlet according to EN 33 or EN 37. The toilet flush must be at least 4 liters. |
| Possible entrance dimensions | 1 x ∅ 32/36/40 |
| Start and stop levels | Launch: 72 mm above floor level Stop: 52 mm above floor level |
| pH value of the pumped liquid | from 4 to 10 |
| Maximum fluid temperature | 50°C |
| Ambient temperature | from +5 °C to +35 °C |
| Operating mode | S3-50% - 1 min. (30 sec. on; 30 sec. off) |
| Supply voltage | 1 x 220-240V - 10%/+ 6%, 50 Hz |
| Power consumption | Max. 620 W |
| Rated current | 3.0 A |
| Power factor | 0,87/0,92 |
| Rotation frequency | 2800 min-1 |
| Protection class | IP44 |
| Insulation class | F |
Automatic sewage pumping installation Sololift2 WC-3 for private homes
An exact analogue of the previous model, but here, in addition to the floor-standing toilet, you can connect a choice of three additional elements: sink, bidet, shower cabin, urinal.
| Net weight | 7.3 kg |
| Tank capacity | 9.0 l |
| Flexible pressure pipe | ∅22/25/28/32/36/40 |
| Connection to toilet | Toilet with horizontal outlet according to EN 33 or EN 37. The toilet flush must be at least 4 liters. |
| Possible entrance dimensions | 1 x ∅ 32/36/40, top connection 2 x ∅ 36/40/50, side |
| Start and stop levels | Launch: 72 mm above floor level Stop: 52 mm above floor level |
| pH value of the pumped liquid | from 4 to 10 |
| Maximum fluid temperature | 50°C |
| Ambient temperature | from +5 °C to +35 °C |
| Operating mode | S3-50% - 1 min. (30 sec. on; 30 sec. off) |
| Supply voltage | 1 x 220-240V - 10%/+ 6%, 50 Hz |
| Power consumption | Max. 620 W |
| Rated current | 3.0 A |
| Power factor | 0,87/0,92 |
| Rotation frequency | 2800 min-1 |
| Protection class | IP44 |
| Insulation class | F |
Sewage pumping unit with built-in professional cutting mechanism Sololift2 CWC-3
Pumping station, power 620 W and capacity 137 l/min. The model is designed to be connected to a wall-mounted toilet, making it possible to connect 3 additional elements: a washbasin, a shower stall, and a bidet or urinal.
| Net weight | 7.1 kg |
| Tank capacity | 9.0 l |
| Flexible pressure pipe | ∅22/25/28/32/36/40 |
| Connection to toilet | Toilet with horizontal outlet according to EN 33 or EN 37. The toilet flush must be at least 4 liters. |
| Possible entrance dimensions | 1 x ∅ 32/36/40, top connection 2 x ∅ 36/40/50, side |
| Start and stop levels | Launch: 72 mm above floor level Stop: 52 mm above floor level |
| pH value of the pumped liquid | from 4 to 10 |
| Maximum fluid temperature | 50°C |
| Ambient temperature | from +5 °C to +35 °C |
| Operating mode | S3-50% - 1 min. (30 sec. on; 30 sec. off) |
| Supply voltage | 1 x 220-240V - 10%/+ 6%, 50 Hz |
| Power consumption | Max. 620 W |
| Rated current | 3.0 A |
| Power factor | 0,87/0,92 |
| Rotation frequency | 2800 min-1 |
| Protection class | IP44 |
| Insulation class | F |
The following models are suitable for draining gray waste:
Compact and ready-to-install sewage pumping unit Sololift2 C-3.
Installation with a power of 640 W, capacity of 204 l/min . There is no chopper here, but the following devices can be connected: sink, bath, shower, bidet, dishwasher and washing machine.
It should be noted that, unlike other models, this station is suitable for draining water whose temperature varies between 75-90 degrees.
| Net weight | 6.6 kg |
| Tank capacity | 5.7 l |
| Flexible pressure pipe | ∅22/25/28/32/36/40 |
| Possible entrance dimensions | 1 x ∅ 32/36/40, top connection 2 x ∅ 36/40/50, side |
| Start and stop levels | Launch level 1: 65 mm above floor level Launch level 2: 115 mm above floor level Stop level: 35mm above floor level |
| pH value of the pumped liquid | from 4 to 10 |
| Maximum fluid temperature | 75 °C constant 90°C for 30 minutes |
| Ambient temperature | from +5 °C to +35 °C |
| Operating mode | S3-50% - 1 min. (30 sec. on; 30 sec. off) |
| Supply voltage | 1 x 220-240V - 10%/+ 6%, 50 Hz |
| Power consumption | Max. 640 W |
| Rated current | 3.1 A |
| Power factor | 0,66/0,90 |
| Rotation frequency | 2800 min-1 |
| Protection class | IP44 |
| Insulation class | F |
Automatic sewage pumping unit Sololift2 D-2
The lightest model in the series, designed for washbasins, showers and bidets. Here the output power is 280 W , the throughput is 119 l/min.
It should be noted that pumping units for toilets have a storage tank size of 9 liters . Equipment weight: 7.3-7.1 kg . Equipment for gray waste has more modest parameters: tank – 5.7/2 l, weight – 6.6/4.3 kg. The data is given in order of listing.
| Net weight | 4.3 kg |
| Tank capacity | 2.0 l |
| Flexible pressure pipe | ∅22/32 |
| Possible entrance dimensions | 2 x ∅32/36/40 side |
| Start and stop levels | Launch level: 58 mm above floor level Stop level: 35mm above floor level |
| pH value of the pumped liquid | from 4 to 10 |
| Maximum fluid temperature | 50°C |
| Ambient temperature | from +5 °C to +35 °C |
| Operating mode | S3-50% - 1 min. (30 sec. on; 30 sec. off) |
| Supply voltage | 1 x 220-240V - 10%/+ 6%, 50 Hz |
| Power consumption | Max. 280 W |
| Rated current | 1.3 A |
| Power factor | 0,90/0,95 |
| Rotation frequency | 2800 min-1 |
| Protection class | IP44 |
| Insulation class | F |
What is this? What is it for?
Sololift2 is a sewage pump designed for pumping wastewater from places where sloped pipes cannot be used and places far from the sewer system. These are practical, space-saving and ready-to-install solutions for the removal of domestic wastewater that cannot directly flow into the main sewer pipe.
Sololifts for sewerage are used more often in such places: basements, kitchens, bathrooms, places where they were not originally provided, etc. The pump can be used for various purposes. For example, for connecting a bathroom, shower, air conditioner, dishwasher, sink (both in the kitchen and in the bathroom).
Features and Benefits:
- Ready to install solution.
- High reliability thanks to high-performance motor.
- All parts are available.
- Switch units available for service
- Tank design reduces the risk of clogging
- Resistant to hot water (up to 900C).
- Very compact design.
- Works in any existing installation. Even where sewer wastewater cannot flow along a natural downward slope, a sololift provides independence from the main drainpipe. This gives you the freedom to place new installations anywhere. In-wall and free-standing models are designed to fit any space.
- The easily replaceable Grundfos SOLOLIFT2 will replace any existing Macerator, including Saniflo.
- Say goodbye to lengthy repairs with SOLOLIFT2, messy repairs and dirty fingers. Additionally, SOLOLIFT2's unique self-cleaning design minimizes the need for tank cleaning.
- The device is ready for use and works automatically when water enters the tank.
- A separate control unit ensures uninterrupted service.
- With input and output connections, replacement has never been easier. Adjustable inlet pipes allow up to 10mm of movement both vertically and horizontally for easy installation onto existing pipes. Additionally, selectable output direction and an optional variable flow connection kit allow for easy replacement of existing makes and models. Regardless of the application, be it an initial installation or a replacement, these unique features combined with an extremely compact design make the Grundfos drain sololift the ideal choice.
- The SOLOLIFT2 tank has a unique sloping bottom that directs solids towards the pump. This reduces the risk of settling or clogging.
- SOLOLIFT2 is equipped with an additional innovative Plug-and-Go USB board.
- With ease of installation, no batteries, no additional processing required and an early warning system in case of failure, maintenance is simple.
- All SOLOLIFT2 models have a built-in ventilation valve and an effective carbon filter to prevent unpleasant odors.
- SOLOLIFT2 is an easy-to-use household pump on the global market. Its built-in lifting motor and pumping unit ensures fast, clean repairs and maintenance... no more dirty hands! With SOLOLIFT2 there is no need to remove the device, drain and disconnect the drain pipe. Simply open the service lid for easy access to clean, dry components.
- With its external anti-clog feature, a screwdriver is all you need to clear clogs. Items such as children's toys that the crusher cannot handle can be removed quickly and efficiently by simply unscrewing the lid, removing the motor and pump unit within a few minutes.
- All devices are approved by LGA, VDE, EMC and GOST.
- Sololift2 devices quickly pump out wastewater.
Advantages and disadvantages
Sololift2 sewage pumping units have a number of undeniable technical advantages. For example:
- High technical characteristics and long-term operation.
- Easy to install.
- Minimum maintenance requirements: the system is self-cleaning.
- Minimum noise level during operation.
- Compact dimensions: ideal solution for small bathrooms.
- Sloped bottom of the storage tank, which minimizes the likelihood of sediment accumulation.
- Withstands high temperatures and pressure.
There are only two significant disadvantages:
- Dependence on uninterrupted power supply.
- Inability to pump large volumes of water.
Sololift2 is a modern solution for arranging sewer systems in country houses. It should be noted that the equipment is practically free of disadvantages, while being sold in an affordable price segment of the market.
Equipment Maintenance
The design features of Sololift2 units allow for minimal maintenance requirements. In order for the equipment to operate correctly over a long period of time, it is necessary to carry out regular preventative cleaning of the tank. For this purpose, a chemically active component is used - a detergent.
For this procedure, you must complete the following steps:
- Disconnect the device from the power source and remove the top cover.
- Pour in the cleaning agent and wait a while.
- Connect the device and drain the water.
- Run the pump with water several times.
- Install the cover.
The maintenance scheme is quite simple, so it does not require the involvement of specialists.
Proper cleaning of the installation
Let's consider the question of how to clean equipment. Cleaning will be effective if you adhere to the following order:
- If the system is still working, then it is necessary to use cleaning agents that will destroy the blockages , and then drain the water. In this way, organic residues present in the system are destroyed.
- Next, you need to de-energize the device.
- The receiving filter is removed and washed.
- After this, the submersible pump should be removed . The tank is cleaned of drainage and a detergent is poured into it (it is important to follow the instructions for the selected product).
- Everything around the knife should also be cleaned. If you understand the design, you can remove the cutting mechanism, which will facilitate the cleaning process.
- The check valve is being flushed.
- If necessary, replace the carbon filter . Usually an indicator of this is an unpleasant odor emanating from it.
More details on how to clean the installation are written in the instructions.
Important! More than three water consumption points cannot be connected to the pumps at one time.
