What does RO pressure tank mean in practice?
The diaphragm stores the permeate under pressure, and the air pressure on the empty side determines the usable volume and the flow from the tap.
When does it matter?
Too high an initial pressure limits the filling, while too low one leaves water in the tank and weakens the final flow.
Which solutions are related to it?
The pressure is set on the empty tank according to the system instructions and the operation of the four-way valve is checked.