Grundfos Blog - Grundfos — digital and sustainable solutions for the next generation of mining and energy

Why Is Henry Not Playing? The Grundfos Pump Expert's Guide to System Mismatch & Silent Failures

Your Grundfos pump (SQ-250 or UPS 15-42F) is running but 'not playing'—delivering poor flow or pressure. This guide diagnoses the three most common causes of system mismatch, covering dead-heading, air lock, and speed setting errors.

2026-05-13

Why Your Grundfos Pressure Pump Specs Failed—and How a Paint QC Guy Fixed It

A quality control story about a rejected batch of Grundfos pressure pumps, where a color matching spec exposed a critical design flaw, leading to a smarter spec approach.

2026-05-12

The $18,000 Lesson: Why I Now Pay Extra for Delivery Certainty (and You Should Too)

A quality manager recounts how a failed delivery deadline on a critical pump component for a mining operation taught him the true cost of uncertainty, and why paying a premium for guaranteed delivery is sometimes the cheapest option.

2026-05-12