Grundfos STR2-1.5 C

The Grundfos STR2-1.5 C 1.5 Bar Shower Pump, with its WRAS endorsement, can be placed amidst the water channels in your residence to uplift water pressure when using showers or activating the washbasin faucet. This ensures an intensified water flow, with its peak pressure capacity being 1.5 bar.

Designed with a positive head, this pump benefits from the spontaneous flow of water towards it. The water source, usually a cold water tank, is elevated at a distance of at least 1 metre above the pump. Due to gravity, water from the reservoir seamlessly courses into the pump. This arrangement makes it more efficient than pumps with a negative head, as it isn’t required to pull in water actively. Furthermore, this configuration minimizes the potential of air entering the system, which could compromise the pump's efficiency.

Crafted from brass and stainless steel, the pump is adept for moving tap water, preventing the release of rust contaminants into the water. It houses twin impellers, facilitating the simultaneous management of hot and cold water. This ensures a consistent water output, even with concurrent tap usage elsewhere. Additionally, the pump is engineered with features to reduce vibration and prevent slippage, guaranteeing its discreet and quiet operation.

It is against the UK regulation to connect the pump to the water mains system. Such a linkage could potentially disrupt the communal water network, diminishing water pressure for surrounding homes.

The operation of the Grundfos STR2-1.5 C 1.5 bar Shower Pump:

The Grundfos STR2-1.5 C 1.5 bar Shower Pump operates reactively to water movement, turning on or off automatically. When a tap gets engaged, the flow triggers the pump, which halts when the flow subsides after the tap’s closure.

Water from the mains fills the cold water storage, with has two pathways. One channel heats water in the hot water reservoir before routing it to the pump. In parallel, the other directs cold water straight to the pump. The pump then amplifies the water’s force, channeling it with enhanced pressure to the intended destinations.

The Grundfos STR2-1.5 C 1.5 Bar Shower Pump is a suitable replacement pump for:

Watermill 1.5 bar Twin Centrifugal Shower Pump