Waterford’s Gunbarrel tanks are an economical and low maintenance method to treat oil when properly applied. These tanks are an excellent choice when adequate separation of oil, water, and gas is required and uses atmospheric pressure, gravitational force and retention time. Production enters the inlet flume section at the top of the tank. Solution gas is vented from the top of the flume or equalized to storage. Waterford Tank’s Gunbarrel tanks come with flume pipe assembly, spreader table, waterleg outlet with tie down brackets, API 5L threaded couplings (4” standard) and bolt-on gas chamber (flume pipe cap). We can provide our standard design Gunbarrel tank or we can customize our standard design to match your exact requirements.