Hi Folks, Upon opening the package for my Andair PX-375 Boost Pump (RV-14 project), I read a tag that instructs me to properly flush the pump before use. Nothing in the box instructs what the proper flush technique is, and I haven’t had much luck searching it online or at the Andair website. Can someone share what they did to flush the anti-corrosion fluids from their new boost pump? Thanks much!