Low water pressure is one of the main causes of problems with reverse osmosis units as it can cause the unit not to work at its optimum power. A low pressure can also lead to a low rejection rate, since the filtration power of the equipment loses effectiveness. The use of a pressure measurement amplifier, when using a water pump, is also recommended in order to ensure the pressure is in the optimal range. This pressure gauge allows you to monitor the inlet pressure and provide approximate guidance for when your pre-filters require replacement.