The HydraPump® Smart Flex is an automatic, on-off adjustable water removal pump designed to efficiently transfer clear water from one point to another. It is particularly useful for managing unexpected water accumulation in various scenarios, such as flooded pool covers, overflowing pools or other water sources, and swollen natural water sources like rivers and lakes that might cause yard or patio flooding.
This pump utilizes HydraSense™ technology, which incorporates a height-adjustable electrical sensor. This sensor detects the presence of water and automatically activates the pump, providing an out-of-the-box ready-to-go experience when connected to a standard garden hose. The pump can operate independently when sufficient water is detected, or it can be set to a continuous "always on" mode for constant pumping when attended. The sensor's position can be adjusted to a desired height, allowing for flexible operation based on specific needs. The HydraPump® Smart Flex is submersible and designed to operate underwater, making it suitable for moving large volumes of water from one basin or location to another.
For optimal performance and safety, several usage features are highlighted. The pump requires a 120V AC power source and must be connected to a Ground Fault Circuit Interrupter (GFCI) device. It is crucial that the circuit breaker and outlet are properly grounded. The pump's automatic water detection via the external sensor can be adjusted, or the pump can be set to an "always on" mode. It is important to ensure that the water source and piping are free of dirt, scale, and sand, as debris can clog the pump. The pump and its piping cannot operate below freezing temperatures. Additionally, the pump should not be run dry for extended periods; if this occurs, it should be unplugged and checked for damage.
Installation involves several steps. First, the mode of operation needs to be set. The sensor can be placed on top for continuous operation or attached to a desired height position slot for automatic operation. Next, the elbow and adapter must be connected. The HydraPump® Smart Flex comes with an elbow that connects before the adapter, which then allows for connection to a garden hose or other piping. The adapter includes a check valve, which can be removed if not needed to increase performance. Alternatively, an 1.5" BSP hose fitting can be directly connected to the elbow for maximum performance. The included base should then be attached to "lock" the pump into place for maximum stability. When attaching piping, it is essential to ensure a watertight seal. The pump should be placed upright on a hard, flat surface in the water, avoiding muddy or sandy surfaces to prevent the inlet screen from clogging. After piping and positioning, the pump is plugged into a 120V GFCI outlet. Upon plugging in, the pump performs a 10-second power-on self-test, which may involve pumping water even if the sensor doesn't detect it. If water is present at the sensor or the pump is in continuous operation mode, it should begin to operate as expected.
For ongoing operation, in automatic mode, the pump activates when the top of the sensor senses water and continues to pump until the bottom of the sensor is reached, turning off after an additional 10 seconds. The sensor's height can be adjusted using the slots on the pump's exterior. In continuous mode, the pump always pumps regardless of water detection. It is critical that the pump remains upright for correct automatic operation to prevent damage. In continuous operation mode, the pump should not be operated without water present.
The pump adapter offers two types of connections: a ¾" Garden Hose Thread (GHT) and a 1" National Pipe Thread (NPT) standard connection. For improved outlet flow, larger hoses or adapters can be attached. The GHT connection can be cut off for 1" NPT installations, and the NPT threads can also be removed to clamp a hose directly to the remaining connector. Alternatively, the entire hose adapter can be unscrewed, and a 1½" pipe or hose can be directly attached to the pump outlet. When attaching NPT threaded connectors directly, plumber's tape should be used for a better seal. Care must be taken not to damage threads when removing larger connections.
Maintenance features are crucial for the longevity and safe operation of the HydraPump® Smart Flex. Impeller cleaning is a key maintenance task. Before attempting to clean the impeller, the power source must always be disconnected. The process involves removing three screws, detaching the cover, and carefully cleaning any debris from the impeller. Before reattaching the cover, the gasket must be repositioned correctly to avoid obstructing pump openings. The cover and screws are then reinstalled, taking care not to over-tighten or strip the screws.
For storage, after pumping is complete, the garden hose or other piping should be disconnected from the pump. Outlet hoses should be emptied and removed. The pump should be wiped clean and stored in a clean, dry place for its next use. It is important to note that the pump may become hot during operation, so caution is advised when working near or touching it.
General maintenance also includes keeping the pump inlet clean and free of foreign objects, inspecting it at the beginning of each use. The motor housing is completely sealed and does not require regular service. Therefore, the motor housing should not be disassembled, nor should the power cord be altered, as this could result in serious injury. Safety is paramount, and users are reminded to wear safety equipment, including eye protection, when working with pumps. The pump should be handled by its handle or sides, never by the power cord. It is designed only for pumping clear water and should not be used with gasoline or other explosive liquids, nor in environments with flammable or explosive fumes or gases. The pump should not be run dry. Before handling, ensure the pump is cool and the power is disconnected to avoid burns.
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