2hp gear pump, spec is 150psi pushing 6gm through the fittings and 5/8 hoses. Operating coolant temps in the 160 range.
Coolant formulation is 30% EG in deionized water, buffer with triethanolamine for pH of 8, benzotrizole 100ppm, sodium molybdate 20ppm.
To flush the systems, we've used...