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Pump Introductions
Aug. 21, 2026
The Stream SPM is a multifunctional submersible garden pump capable of handling both clean and dirty water without tools or additional equipment. By lifting its flexible bottom filter, users switch between modes in seconds. With a built-in float switch, float-fixing device, thermal protector, and upgraded mechanical seal, the SPM is engineered for reliable, long-term use across drainage, garden, and water management applications.
Most submersible pumps are built for one job. Drain a flooded cellar. Empty a garden pond. Transfer water from a tank. The moment conditions change—when standing water carries sediment, debris, or solid particles—a single-mode pump becomes a limitation. You either risk damaging the impeller by running it through dirty water, or you stop the job and source a second pump.
The Stream SPM 2-in-1 Multifunctional Submersible Pump eliminates that constraint entirely. It is part of Stream Pumps' Garden Pump range and is designed to transition between clean and dirty water mode without tools, without downtime, and without compromise. For distributors, contractors, and procurement officers sourcing versatile pumping solutions for clients with varied site conditions, the SPM represents genuine operational flexibility in a single, durable unit.
This article covers everything you need to know about the Stream SPM: its core features, how the 2-in-1 mode works in practice, auto versus manual operation, ideal applications, working conditions and specifications, and the design decisions that contribute to its service longevity.
The Stream SPM is a submersible garden pump engineered to handle both clean water and dirty water with solid passage up to 35mm. It sits within Stream Pumps' Garden Pump range and is positioned as a single-unit solution for users who need pumping flexibility across multiple scenarios—residential drainage, garden water management, and site dewatering alike.
The defining feature of the SPM is its flexible bottom filter, which enables tool-free switching between clean and dirty water modes. Pair that with a float switch for automatic operation, a float-fixing device for manual continuous mode, and an upgraded mechanical seal for extended service life, and the SPM delivers a genuinely multifunctional pumping capability that reduces the need for multiple pump models on a single site.
The bottom filter is the mechanical core of the SPM's dual-mode capability. In its standard position, the filter screens out large particles, allowing the pump to move clean or lightly contaminated water without risk to the impeller. When larger solids are present—sediment, gravel, organic debris—the filter can be lifted to open dirty water mode, allowing the pump to pass solid particles up to 35mm in diameter.
Critically, this switch requires no tools. The filter lifts and locks by hand, meaning an operator can adapt the pump to changing water conditions on-site without any disassembly or additional equipment.
The float-fixing device allows operators to lock the float in a vertical position, overriding the automatic water-level response. In this configuration, the SPM runs continuously regardless of water level—useful in low water level conditions or situations where the operator wants direct control over pump operation rather than relying on the automatic cut-off. Switching between auto and manual mode using this device requires no tools.
The SPM is equipped with a purpose-designed carrying handle built for repeated use in field conditions. It is ergonomically shaped for a secure grip and constructed to withstand the handling demands of job site deployment.
The SPM ships with multiple hose adapters to accommodate various hose diameters. This compatibility with different outlet sizes makes the pump straightforward to integrate into existing site water management setups without the need for custom fittings or additional adapters.
Stream Pumps has upgraded the SPM's construction materials and mechanical seal relative to standard-grade submersible garden pumps. The mechanical seal forms the primary barrier between the pump cavity and the motor housing, and its quality directly determines how long the pump operates reliably under sustained use. The upgraded specification extends the expected service life of the unit.
The SPM motor incorporates a thermal protector that automatically shuts the unit down if operating temperature exceeds safe limits. This prevents motor burnout during extended operation or in circumstances where heat dissipation is restricted. Once the motor cools to a safe temperature, the pump can resume normal operation.
Switching between clean and dirty water mode on the Stream SPM is a tool-free, single-action process.
Clean water mode is the default operating configuration. The flexible bottom filter sits in its lowered position, screening out large particles and protecting the pump impeller from debris that could cause jamming or premature wear. In this mode, the SPM handles clear or lightly contaminated water—garden ponds, swimming pools, water tanks, and similar clean-water sources.
Dirty water mode is activated by lifting the bottom filter upward. With the filter raised, the pump intake opens to pass solids and particles up to 35mm in diameter. This configuration is appropriate for flooded cellars carrying sediment, building pits after rain events, or any application where the water source contains significant solid content.
The transition between modes takes seconds. No tools, no disassembly, no downtime. For contractors managing sites where water conditions vary throughout a project, this flexibility reduces the equipment inventory required and keeps operations moving.
The Stream SPM supports two distinct operating modes, each suited to different site conditions.
Auto mode uses the float switch to control pump operation based on water level. The float switch rises with the water and activates the pump when a set level is reached; as the water drains and the level drops, the float descends and triggers the pump to stop. Auto mode is the preferred configuration for unattended drainage operations, overnight pumping, or any scenario where manual supervision is impractical. It also prevents dry-running, which is one of the most common causes of premature motor failure in submersible pumps.
Manual mode is enabled by securing the float with the float-fixing device. Fixing the float vertically disables the automatic level response, and the pump runs continuously until manually switched off. This mode is useful when the operator wants direct control, when water levels are consistently low, or when the automatic cut-off would interrupt an operation that requires sustained continuous flow.
Switching between auto and manual requires only the use of the float-fixing device—no tools, no configuration changes, no additional wiring.
The SPM's dual-mode capability makes it a reliable fit for a wide range of residential, garden, and light construction applications.
Building pit drainage: Rapid removal of water accumulating in excavated pits during or after rain. Dirty water mode handles sediment and small aggregate effectively.
Flooded cellars and basements: The SPM drains standing water from below-grade spaces, including water carrying suspended particles from floor surfaces or foundation materials.
Water tanks: Clean water mode allows safe transfer of stored water without contaminating the source.
Garden ponds: Draining or water-level management for garden ponds, including those with organic sediment on the floor.
Swimming pools: Pool drainage at end of season or for maintenance, where water is clean and requires no solid-passage capability.
Rainwater harvesting: Lifting and transferring collected rainwater for irrigation or storage applications.
Parameter | Specification |
|---|---|
Liquid temperature | Up to 35°C |
Maximum grain size (dirty mode) | 35mm |
Maximum submersion depth | 7m |
Protection class | IPX8 |
Insulation class | B |
Power supply | 230V / 50Hz, single phase |
Sealing | Mechanical seal |
IPX8 protection means the SPM is rated for continuous submersion beyond 1 meter depth, confirmed to its specified 7-meter maximum. This rating is appropriate for the full range of garden and drainage applications described above.
Single-phase 230V/50Hz power supply makes the SPM compatible with standard domestic and light commercial electrical infrastructure across most European and international markets operating on this supply standard. Distributors should verify local supply voltage and frequency compatibility before specifying the SPM for markets with different electrical standards.
Maximum liquid temperature of 35°C confirms the SPM is suitable for ambient groundwater, rainwater, and typical surface water drainage—not for elevated-temperature industrial liquids.
Three specific design elements contribute to the SPM's service longevity.
Upgraded construction materials provide structural durability under the physical demands of regular deployment and retrieval, resistance to the abrasive effect of particulate water in dirty mode, and long-term resistance to corrosion from water contact.
Upgraded mechanical seal is the primary factor determining how long any submersible pump motor remains protected from water ingress. Stream Pumps has specified an enhanced mechanical seal in the SPM to extend the interval between seal wear and the point at which motor protection is compromised. For procurement officers evaluating total cost of ownership, seal quality is a direct variable in replacement frequency and maintenance cost over the pump's service life.
Thermal protector prevents motor burnout in the event of overheating. In sustained drainage operations where the pump runs for extended periods, or in scenarios where motor cooling is limited by the surrounding water temperature, the thermal protector provides an automatic safety cut-out that preserves the motor. This protection is particularly relevant for automatic mode operation, where the pump may run unattended for hours at a time.
The Stream SPM is a submersible garden pump designed for both clean and dirty water applications. Common uses include building pit drainage, flooded cellar pumping, garden pond management, pool drainage, water tank transfer, and rainwater harvesting. The 2-in-1 mode allows a single unit to handle both water types without additional equipment.
Switching between modes requires no tools. In clean water mode, the flexible bottom filter sits in its lowered position, protecting the impeller from large particles. To activate dirty water mode, the operator lifts the bottom filter by hand, opening the intake to pass solids up to 35mm in diameter. The transition takes seconds and can be reversed at any point.
The Stream SPM can pass solid particles with a maximum grain size of 35mm in dirty water mode. This covers sediment, small gravel, organic debris, and similar particulates commonly found in flooded cellars, building pits, and garden drainage scenarios.
In auto mode, the float switch controls pump operation based on water level—starting the pump when water rises and stopping it when the level drops. In manual mode, the float-fixing device locks the float in a vertical position, disabling the automatic response and allowing the pump to run continuously. Switching between modes requires only the float-fixing device.
The Stream SPM has a maximum submersion depth of 7 meters. Its IPX8 protection class confirms it is rated for continuous submersion at this depth.
The SPM is rated for liquids up to 35°C. It is designed for clean water, mildly contaminated water, and dirty water with solid content up to 35mm. It is not designed for high-temperature liquids, chemical solutions, sewage, or slurry. For those applications, Stream Pumps offers dedicated sewage and grinder pump models within the Submersible Pump range.
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