Factors Affecting the Power, Flow and Pressure of Booster Pumps


A booster pump is just a pump, with a bladder tank or without, that allows you to raise domestic water pressure or maintain it in the pipes during times of heavy demand. If you have a pool, it can be good to operate at relatively high pressure, with automatic cleaners and other robots being better at eliminating encrusted dirt.

 You may want to get a swimming pool booster pump for your system. But what factors are considered in determining booster pump power, flow and pressure?


Pressure refers to the force of the water in B (bars) at discharge point, depending on pump pipe cross-section. Manufacturers can also indicate pressure in terms of CMW (column metres of water).

Pressure and flow are inseparable. This is a basic law of hydraulics: for a specific flow, a larger-section pipe is going to produce lower pressure than a smaller-section, learn more here!

Discharge height

The unit used to express discharge height is CMW. It’s a vital criterion because you have to make sure that the pumped water gets to the intended discharge point. In most cases, surface pump makers will report a discharge height, or the level difference between the pump and the discharge point, or a TMH  or the total manometric height in metres, check it out!!


Flow is any water system’s key technical characteristic! The flow rate refers to how much water is pumped as a function of time. To get some facts about pump heating, go to http://www.ehow.com/how-does_5002285_fast-recovery-water-heater-works.html.

When selecting a pump, remember though that flow rate is dependent on two factors: suction depth and the discharge height. For a particular diameter of pump pipe, the same pump will create less flow as the height difference goes up.

Conversely, the smaller the distance between your suction and discharge points in height, the greater the flow rate will be. 250m3/h for each additional person. For watering, give 1m3/h for 400m? and 3.

Around 2 to 3 B is considered the ‘comfortable’ domestic water pressure range, depending on how far the water supply point (water reservoir or tower) is located. Hence, the most remote, “end of the line” properties may experience low pressure and find a booster helpful.

If you get water from a well, look at the suction depth as well as the type of water you’re sucking up. Look at discharge height too, which is the distance from the surface pump to the water distribution site – as when you water a garden that lies high above the well. When using an automatic watering system, the correct flow must be determined. Obviously, you will need more water the more watering points you have.



Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s