Barrowch GJQM-01 Liquid Cooling Leak Tester

Barrowch GJQM-01 Leak Tester

The Barrowch GJQM-01 is a manual air tightness tester designed for custom liquid cooling loops. It allows builders to pressurise the circuit and verify that every block, fitting and tube joint holds pressure before coolant is added. The tool is intended for enthusiasts assembling open-loop systems who need a straightforward way to confirm a leak-free build. It is not suited for buyers who require automated pressure logging or continuous monitoring.

Installation and Common Issues

Connect the tester to a loop port, then use the hand pump to raise pressure while watching the gauge for any drop that would indicate a leak. The process requires only basic hand-tightening of the supplied fittings, so no special tools are needed. A frequent mistake is forgetting to seal every unused port on the loop, which gives a false pressure loss. Another common issue is overtightening the tester connection, which can damage O-rings and create the very leaks the check is meant to find.