I am trying to troubleshoot an issue with Agilent binary pump G1312B.
With purge valve open, flow rate set at 1 mL/min, I am receiving a pressure reading of ~7 bar. I am also noticing a slow leak coming out of the silicone waste line attached to the top of the pump head (not the solvent waste line coming from the purge valve).
So far I changed and purge valve frit as well as the piston seals on pump head A, flushed the system with H2O, warm H2O and IPA to no avail.
Any advice would be appreciated thanks.