how to use a magnehelic gauge
Hereâs how to use your Magnehelic Gauge: 1) Prior to cleaning the dryer vent, install our SmartTap Fitting in the transition hose (see pic to the right). Using the same tubing from the LintAlert, connect the SmartTap Fitting to the High Pressure barb on the magnehelic gauge.2) Turn the dryer ON and take note of the high pressure reading on the gauge. 3) After cleaning the dryer vent, turn the dryer back ON and see how much the back pressure has been reduced.sing the same tubing from the LintAlert, connect the SmartTap Fitting to the High Pressure barb on the magnehelic gauge. 2) Turn the dryer ON and take note of the high pressure reading on the gauge. 3) After cleaning the dryer vent, turn the dryer back ON and see how much the back pressure has been reduced.