Booster Pump System - Residential FAQ's

What is a residential booster pump system and how does it work?

A residential booster pump system consists of a centrifugal pump, pressure switch and a diaphragm tank (called pressure tank) and is designed to provide constant water supply throughout the home at a constant pressure that is required for satisfactory operation of gadgets in the bathrooms like showers etc.

In such a system, when water is drawn from any of the outlets such as taps, showers etc. water is supplied at a uniform pressure from the water stored in the storage tank (pressure tank). As more water is drawn continuously from the tank, the line pressure drops and at a pre-set pressure of the pressure tank, the pump will start-up (called cut-in pressure) and fill up the pressure tank with water. As the water consumption stabilizes and the pressure is maintained in the line, the pump will automatically stop (called cut-off pressure).

Do I need a water storage pressure tank along with the booster pump?

Yes, it is recommended to use a water storage pressure tank along with the booster pump as it delivers the following benefits:

  • The tank protects and prolongs the life of the pump by preventing rapid cycling of the pump motor (frequent start and stops)
  • The tank provides water under pressure for delivery between pump cycles
  •  And, the tank provides additional water storage if the water supply is incapable of supplying the required volume during peak demands. 

Pumps generally fail due to rapid cycling, so without a pressure tank many daily water uses such as washing your hands, or flushing a toilet could trigger the pump to cycle. This type of frequent cycling is problematic to the pumping mechanism and electric motor.

How do I determine which model size of residential booster pump and pressure tank I need?

The Pumps & More sells booster pump systems from leading manufacturers in India. The website has built-in filters provided to help you identify & select the suitable booster pump based on the number of bathrooms & the type of shower fittings/accessories used such as normal shower, rain shower, shower panel etc. For each product you also need to refer to the hydraulic performance chart to see the water output (flow rate) that the pump system can generate for a given head.

Do we need to have two booster pumps – one for hot water and the other for cold water?

For the average residential homes, a single booster pump can be provided to boost the pressure on both the hot and cold water lines. However for large bungalows or villas with 8 to 10 bathrooms a twin booster system might be more appropriate. Please contact us for the appropriate system design in such cases.

Can I install my residential booster pump, or pressure tank outside?

Most residential booster pumps are "drip proof", but not weather-proof. Pumps need to be protected from the rain and other water while allowing for air to circulate around the motor. Pressure tanks are typically not designed to be exposed to an outside weather environment. To maximize the life of your booster pump system, we recommend protecting these components by installing then within enclosed areas, not exposed, or susceptible to heat, freezing temperatures, or moisture.

What is the best operating pressure for my booster pump and storage tank?

The operating pressure of a booster pump system should be chosen according to the water pressure that the piping network system within the house can withstand. Normally, plumbing fixtures are designed to handle water pressure upto 3-4 bar. If the pressure is in excess of this, plumbing fixtures and appliances could be damaged, and pressure reducing valves are required. Please contact your plumber/plumbing consultant to find out the maximum pressure your piping network can handle and set the booster pump system to operate at that level accordingly.

Can I change the systems pressure settings after it is installed?

Yes, but most residential booster pumps come pre-set to match your system requirements while others are factory set to a certain pressure. The system pressure, or cut-in and cut-out pressures can generally be adjusted, however, unless you are familiar with pressure switches, we recommend you leave this type of adjustment to professionals.

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