This feature follows on from Restoring suck ‘n’ blow, here. Vacuum tanker pumps are simple beasts, so the job is straightforward, yet there are still one or two things to watch. • Don’t throw away the ...

Any time the internal piping or components of a refrigeration system are exposed to atmospheric air, they must be completely evacuated before refrigerant can be added into the system. Proper ...

Depending on the automotive part, air is crucial or crucially harmful. Whereas an engine needs air to function properly, the opposite is true for a car’s braking system. To operate effectively and ...

DEEP EVACUATION ON A GROCERY STORE RACK: Multiple large hoses coupled directly to a high-cfm pump is the easiest way to pull down a refrigeration rack. February 25, 2019 Evacuation is often called ...

Have you heard of the Sprengel pump? It’s how they drew hard vacuum back before mechanical pumps were perfected — the first light bulbs had their vacuums drawn with Sprengel pumps, for example. It ...