High-pressure submersible pumps
The Multi Drain series incorporates Elpumps’ highest hydraulic performance submersible deep-well pumps, built to deliver optimum performance during periods of high demand.
Characterized by a robust build, a powerful 900W / 1200W motor, 3–5 high-performance impellers and a delivery head of up to 54 m, Multi Drain pumps are perfect for all kinds of deep-well drainage tasks. The tough, durable, corrosion-proof materials offer high resistance to suspended solids. Multi Drain pumps are fitted with an integrated automatic float switch and have a low-consumption electric motor with thermal overload protection.
Ideal for pumping clean water from bored wells, irrigating gardens and green areas by flooding or sprinkler and for dewatering flooded areas, pools, fountains and hobby applications in general, Elpumps Multi Drain pumps are perfect for both domestic and light commercial use.
Features and benefits
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Frequently Asked Questions About High-Pressure Submersible Pumps
What is a high-pressure submersible pump?
A high-pressure submersible pump is a type of submersible pump specifically designed to deliver clean water at high pressure, typically using multiple impellers. These pumps are used either when the water source is located far below the surface, requiring a high lift, or when high pressure is needed for a specific application—such as an irrigation system—even if the water level isn’t deep.
In what domestic applications are high-pressure submersible pumps commonly used?
These pumps are frequently used in domestic applications such as automated water pumping from wells, tanks, and reservoirs. They are ideal for supplying clean water to high-pressure garden irrigation systems, making them a great choice for greenhouses, orchards, and small-scale farms. High-pressure submersible pumps are also suitable for rainwater harvesting and watering with uncontaminated water from lakes or ponds.
Are they suitable for pressure washers?
No. We do not recommend MultiDrain pumps for use with high-pressure washers, as these devices typically require pressures of 6–8 bar or more, which exceed the capabilities of MultiDrain pumps.
Are they suitable for lawn sprinklers?
Yes, a high-pressure submersible pump can be used with a lawn sprinkler system, but it is important to install a controller to turn the pump on and off automatically when needed.
Are they suitable for wells?
Yes, a high-pressure submersible pump is particularly well-suited for pumping water from wells. These pumps are fully submersible and capable of delivering water at high pressure.
Are they suitable for garden irrigation?
Yes, a high-pressure submersible pump is perfect for garden irrigation. Keep in mind, however, that Elpumps MultiDrain pumps are not equipped with a pressure switch, meaning they do not turn on and off automatically when a tap or garden hose is opened or closed. These pumps operate at full power when plugged in and stop when unplugged.
Are they suitable for cisterns?
Yes, a high-pressure submersible pump can be used in cisterns, provided that the float switch has enough space to function properly. Note that these pumps do not include an automatic on/off feature, so they must be manually switched on and off. To supply water to a household, it is recommended to install a pump control system or to use a pressure booster set instead.
High-pressure submersible pump vs. standard submersible pump – what’s the difference?
The main difference lies in choosing between high pressure or high flow rate—you typically can't have both in domestic applications. Most standard submersible pumps for home use provide high flow (m³/h) but only operate at low pressure. For example, draining a swimming pool requires high flow, not high pressure.
High-pressure submersible pumps are the opposite: they offer high pressure but lower flow rates. Sprinkler systems, for instance, require higher pressure and less flow, so selecting the right pump depends entirely on the application.
Do I need a high-pressure submersible pump or a pressure booster set?
If the water level is less than 7 meters below the surface, a pressure booster set is recommended. These systems include a pressure switch, and some models come with integrated dry-run protection.
If the constant water level is deeper than 7 meters, a high-pressure submersible pump is suitable—but for fully automated operation, a qualified technician must install a separate pressure switch and dry-run protection.
High-pressure submersible pump vs. deep well pump – what’s the difference?
In addition to pressure and flow requirements, a key deciding factor is the well diameter. High-pressure submersible pumps are generally wider, sometimes 30–40 cm in diameter, and also require additional space for the float switch to operate—making them suitable for open wells.
Deep well pumps, by contrast, are specifically designed for drilled wells, which have a much narrower diameter—typically 3" to 4" in domestic applications. So, the correct type of pump depends on your well’s diameter.
Submersible pump vs. suction pump / garden pump – what's the difference?
As with pressure booster sets, the key factor is the constant water depth. If the water level is less than 7 meters deep, a garden pump is recommended. These are more robust, have a simpler build, and are generally cheaper and easier to repair.
If the water is deeper than 7–8 meters, a high-pressure submersible pump or a deep well pump is the better option. These have powerful motors and multiple impellers to ensure reliable performance.
How does a high-pressure submersible pump work?
An electric motor drives multiple impellers that generate a flow of water. These impellers push the water through various stages, increasing the pressure, and enabling it to be pumped to greater heights. The pump features a waterproof housing and is fully submersible, making it ideal for wells and other underwater applications.
To what depth can Elpumps high-pressure submersible pumps be submerged?
MultiDrain pumps can be submerged up to 5 meters below the water surface. Note that submersion depth is always measured from the water level, not from ground level.
TIP: To prevent the impeller from clogging or the motor from overheating, avoid placing the pump directly on the bottom of the well, where mud, sand, or sediment may accumulate. If it must be placed on the bottom, set it inside a bucket, so it draws clean water from the sides rather than debris from the bottom. Ensure the float switch has sufficient space to operate freely.
How does the float switch work? Does it activate and deactivate the pump automatically?
The float switch is a key safety component in a high-pressure submersible pump, but it should not be confused with a pressure switch. The float switch shuts off the pump when the water level drops below a critical point, usually near the top of the pump.
This prevents overheating and dry running, both of which can damage the motor.
A pressure switch, by contrast, automatically turns the pump on or off when a tap or garden hose is opened or closed.
How do I place a high-pressure submersible pump in the water?
Use a steel cable, chain, or rope tied to the pump handle to lower it into the water. Never use the power cable for this purpose, as it cannot support the pump’s weight. If the power cord is damaged, water may enter the housing and short-circuit the motor.
What should I consider when connecting a high-pressure submersible pump to a garden hose or water tap?
Ensure the pump has the correct fittings and adapters for the garden hose or tap you plan to use. Keep in mind that MultiDrain pumps do not stop when the tap is closed, as they lack an integrated pressure switch.
How do I prime a high-pressure submersible pump?
If the pump is running but not delivering water, an air bubble may be trapped inside the housing. To remove it, tilt the pump to one side while it's submerged to let the air escape.
