The entire flow problem and the solution

Common problems in the flow path are water leakage.
If the water leakage, first stop the work of the advection pump, and then one by one to exclude leakage of the place.
The main place where there is a leak is: 1 advection pump inlet, due to not tight or pressure is too high lead
2 The connection between the conductivity cell and the suppressor is due to the poor sealing of the flanging