This offering is for a 100 PSI booster pump. This pump is a must for homes on well water and for municipalities that operate on low PSI. IF YOU ARE ON CITY WATER AND WANT TO KNOW THE tds AND psi, CALL YOUR WATER DEPARTMENT.

Unless your well have very soft water and low TDS, the 40/60 cycle on most wells produces a less that desirable RO purification. It is commonly in the 85-92% range. This increases the burden on the RO membrane WHICH WILL SILT UP AS WELL WATER IS NOT FILTERED AT SOURCE, AND ON THE DI resins and burns them up fairly quickly.

The absolute rule OF REVERSE OSMOSIS purification is, the more PSI the better the flow and recharge rate, and the better the rejection rate. The pump will dramatically improve the refill and the rejection rates.

It takes 700 PSI to process seawater---but that's 36,000 TDS. Customers with >500 TDS and <50 PSI will not get product water that is a satisfactory   homes in marginal situations will get 85-95% rejection rates instead of the 95-98% that most homes will achieve. These booster pumps are miracles for homes that have low PSI and or high TDS and the add years to the lives of the ro membrane and the DI Beads.

 If you want the best rejection possible to save on the RO Membrane, then the pump is a good idea. It is either on or off and does not have automatic controls. The e-z way to control it is with the simple plug in timer...20 minutes 3 times per day is enough for most homes....need more times 4 times per day etc.