The complete BlueDiamond® range uses an identical, reliable, patented pumping principle called rotary diaphragm. The condensate is drawn into the pump by a vacuum and mechanically driven by a reinforced elastomer diaphragm to the outlet under pressure. This allows the range to tolerate suspended solids and slurries that can be found in the condensate, helping to prevent call outs to stalled or clogged mini-piston pumps. Split peristaltic tubes and worn gearboxes are no longer needed, helping to save on installation and in future servicing.