Tank fills up very slowly

Make sure that water supply pressure in your pipes is sufficient. Pressure drop has directly proportional effect on the performance of the membrane. The lower the water pressure, the lower the production of purified water.

If low water pressure in the system remains constant you must install an additional booster pressure pump, such as: AFXPOMP lub AFXPOMP-4.

Other causes: old filter cartridges and/or clogged RO membrane as well as too low temperature of tap water.