It was used for about 1.5 year whit gravity system and gas boiler now I moved to heatpump and I don't needed anymore. works normally and got no issues whit it. Please ask any questions if needed... The Stuart Turner Showermate Shower Pump 2.0 Bar Single Positive Impeller (47340) is a high-quality shower pump designed for positive head installation. With a maximum working pressure of 2 bar, this pump is ideal for providing powerful and efficient water flow in your shower. The inclusion of noise vibration reduction features ensures a quieter and more comfortable showering experience, making it a practical choice for any home.