Watermill ANHBP100D

Certified by WRAS, the Watermill AP062W 3 bar Universal Shower Pump is a domestic plumbing accessory, purposed to heighten water pressure in showers or over sink taps. This enhancement not only improves water flow but also complements the performance of rain shower systems, achieving a pressure cap of 3 bar.

Distinctively, this pump incorporates a universal head, designed to accommodate with either positive or negative head. In positive head conditions, water flows naturally to the pump due to the water source, such as a cold water tank, being placed higher. However, negative head circumstances imply an artificial water draw to the pump, necessary when the water source is at an equal or lower elevation compared to the outlet.

For homes with attic-placed cold water tanks, the Watermill 3 bar shower pump is invaluable. It empowers high-pressure water delivery to places above the tank, like an improved attic. A critical installation note is ensuring an airtight seal to avoid air breach, potentially undermining the desired pressure.

The pump's brass and stainless steel construction is ideal for potable water, preventing any rust-related contamination. With its twin impeller, the unit maintains consistent, high-pressure flow, facilitating simultaneous hot and cold water supply. This dual capacity maintains a steady water flow, allowing for activities like showering and handwashing at the basin to happen simultaneously. Additionally, the pump operates quietly, due to anti-vibration and stable feet.

In the UK, the law prohibits connecting such pumps directly to the public water mains to maintain stable water pressure across the area. This rule ensures there are no negative impacts on the local water supply.

How the Watermill 3 bar Universal Shower Pump works: The Watermill 3 bar Shower Pump's functionality is pressure-sensitive, autonomously starting or stopping in response to the demand, dictated by pressure shifts within the lines. When a tap activates, the falling pressure triggers the pump, which then deactivates once the tap shuts, re-establishing the original pressure.

The system draws water into the cold tank, splitting towards the heating unit before reaching the pump, while a portion proceeds directly to the pump. This process intensifies the water velocity, causing a forceful discharge at the outlets.

The provided illustration represents a positive head arrangement, where the pump passively receives water. Should the outlet align with or rise above the tank, there will be a negative head condition.

The Watermill AP062W 3 bar Universal pump is is the replacement pump for:

• Grundfos 96788173 STN 3.0 Bar Universal Twin Impeller Brass
• Stuart Turner Monsoon U3.0 bar Twin 
• Salamander CT FORCE 30 PU (3.0 bar Twin)