Construction pit, drainage or sandy water
For mobile and professional use, depending on the chosen model and the allowed contamination.
Start with SPT construction and drainage pumps
View SPT pumps
Choosing an SPT, HOMA, or Simer submersible pump: comparison and selection guide
Pump Selection Guide
Find the right submersible pump type in one minute
First, choose your application. Then you will immediately see whether SPT, HOMA or Simer is the best starting point for your situation.
Construction & drainageFlat suctionDirty & waste water
Construction & drainage
Wide range
Down to approx. 2 mm
Quick choice
What do you want to pump away?
Choose the situation that best matches. Always check the operating point and product specifications afterwards.
Basement, flat roof or terrace almost dry
For low water levels and flat suction down to approximately 2 mm residual water.
Start with Simer 6 or an SPT FSP flat suction pump
View Simer pumps
Dirty water, wastewater or a fixed installation
For a wide selection of pumps, pump sumps and lifting stations.
Start with the HOMA range
View HOMA pumps
Brand comparison
SPT, HOMA and Simer side by side
Each brand has a different focus. The application and the operating point are more important than just the maximum flow rate.
Professional mobile
SPT pumps
Strong for construction, drainage, residual water and—depending on the model—sandy or dirty water.
- Models: 370 W, 400R, 750R, FSP, HIPPO and P-series
- Choose by flow rate, head, free passage and switching
- Agitator models keep settled material around the inlet loose
Broad & installation technical
HOMA pumps
A wide range for drainage, dirty and wastewater, groundwater, building services and lifting stations.
- Series: Bully, HBP, TP, HWE, HCE, Sanistar, Saniquick and San.iQ
- Suitable as a starting point for mobile and fixed solutions
- Choose by medium, operating point, operating mode and free passage
Flat suction specialist
Simer pumps
Compact flat suction pumps for low water levels in basements, on flat roofs, terraces and around swimming pools, among other places.
- Simer 6 without integrated level control
- Simer 6S with integrated electronic level control for automatic switching on and off
- Simer 6 + CRAB as a set with sensor float
Note: maximum capacity does not apply simultaneously with maximum head. Select on the pump curve at the actual head and pipe resistance.
Technical final check
Check these six points before ordering
With this information, a pump can be reliably selected for the application.
1MediumClean water, rainwater, sandy water, dirty water or wastewater.
2Operating pointRequired capacity at the actual head and pipe resistance.
3SwitchingManual, separate float, integrated sensor or control box.
4Power supply230 V or 400 V, including the necessary motor protection.
5ConnectionDiameter, coupling, hose length and the associated pressure loss.
6UseMobile or fixed, continuous or temporary and the permitted fluid temperature.
Frequently asked questions
Still in doubt?
Only open the question relevant to your situation.
Which pump is best for a flat roof?
For low water levels, the Simer 6, Simer 6S or an SPT FSP flat suction pump are logical candidates. Then choose based on capacity, head, automatic switching and the amount of dirt in the water.
What is the difference between Simer 6 and Simer 6S?
The Simer 6 operates without integrated level control. The Simer 6S has integrated electronic level control and can switch on and off automatically.
Is only the maximum flow rate sufficient?
No. The maximum flow rate and maximum head do not occur at the same operating point. Select the pump on the pump curve at the actual head and pipe resistance.
Where can I find current prices and stock?
Please refer to the product pages within the SPT, HOMA and Simer collections. Prices and stock may change; the current product page is decisive.
Ready to compare purposefully?
Open the brand that best suits your application and then compare the models based on the operating point.
Last content check: September 2026. Always check the product sheet and manual of the chosen model before installation.