Hi Michael, With regards ...

Hi Michael, With regards booster pumping there are a number  of key considerations that you need to make if they are to be installed within the distribution system:-

1. Define the purpose, what pressure increase you wish to make and assess the impact on the upstream and down stream distribution system.

2. Ensure you always have a bypass so you can maintain the pump or for larger pumped areas a duty and standby

3. Manage the rate of change of flow to avoid resuspension of any solid deposition especially when commissioning the system and recalibrating the pressure controls

4.Ensure you have sufficient valves and washout to allow flushing of any 'dead legs ' on the pump manifold or bypass on a planned proactive basis

5. Choose a pump that is approved for use with drinking water.

In England, there have been a number of widespread discolouration incidents caused by maintenance of booster pumps. Check out the Drinking Water Inspectorates website www.dwi.gov.uk If you review the publications, their annual report on water quality has a section on incidents that have affected water quality and this  could provide some helpful information for you.

Hope this is helpful. Message me if I can help further. Kind Regards Helen