A RO booster pump, also known as the reverse osmosis booster pump, is used to increase water pressure going into the reverse osmosis (RO) unit.

Most revers osmosis membranes are designed to work with 60 PSI or higher water pressure, where they are tested to yield a stable rejection rate of at least 97.5%. If the water pressure feeding an RO system is less than that, the system will produce less water and at a lower quality. Additionally, production is reduced whenever the water temperature is below 77 °F. Private well systems most commonly have pressurized storage tank and pump systems with 20/40 psi or 30/50 psi on/off pressure settings. In such cases an electric pressure boosting pump must be installed to provide adequate rejection of specific health-related contaminants in the feedwater.

if the water pressure is 50 psi or lower, there is no reason not to take advantage of a reverse osmosis booster pump because it will boost the water pressure to the desired level. This means that you will have more water with higher pressure, and your storage tank will fill much faster.

Also, the increased water pressure will also facilitate the economy of your Reverse osmosis unit by running less eject water to drain, as well as improve the quality of water.