Identify Pressure Surge and Clog Location

What happens here

While attempting to resolve the blockage, the operator activates the pump and experiences a sudden, forceful pressure surge through the hose. This surge is a key diagnostic indicator, confirming the presence of a substantial clog within the hose or the 'whip' (a short, flexible hose connecting the main hose to the gun). The pressure buildup behind the obstruction, followed by a sudden release or movement, suggests the clog is being dislodged or is causing significant resistance.

Goal: Observing a pressure surge through the hose helps confirm a significant clog and narrows down its location.