Where the water level in the cold storage tank is below the level of the shower outlet a negative head situation exists. Specialist Automatic Negative Head pumps to overcome this problem are available from Grundfos.
The Brass Pump range is undoubtedly the Rolls Royce of Grundfos shower pumps, designed and manufactured to the highest of standards. With brass impellers and machined brass stampings these pumps can be genuinely described as Heavy Duty, and each model offers high performance and durability. These continuously rated regenerative pumps are suited to domestic, commercial or light industrial use. Products within this range are fitted with long-life silicon carbide seals and anti-vibration feet keep the operating noise to a minimum. All brass pumps are supplied with stainless steel flexible hoses, and are covered by a comprehensive 2 years warranty. A brass pump will transform any compatible shower system into a really enjoyable and invigorating power shower.
The installation of a Surrey flange is recommended for pumps up to 3 bar pressure.
|Outlet Pressure (Bar)||3.0|
|Flexible Hoses Inc|
|Manufacturer Part Number||STN-3.0 B|
£380.15 (Inc. VAT)
RRP £519.97 Save £139
Price Guaranteed For
Needed to replace pump, only 2 1/2 years old with, I suspect, a U/S PCB. Expensive kit to fail after only 2 1/2 years but Grundfoss will apparently service items less than 5 years old. Yet to see how good that service is. As far as PlumbWorld is concerned, they provided great delivery at the best price on the Net.