QUESTION: I’m having an air-lock problem. Our treatment plant has a discharge station where we hook up to a 4-inch female camlock and unload. They meter our loads by the gallon while unloading. Out of all the haulers in the area, my truck is the only one having an air-lock issue when discharging. This morning my truck only got about 15 gallons off and then locked, but when the staff crack a ball valve the air lock lets go and I’m fine. If they don’t do that I’m stuck! So if I come in after hours I’m really stuck.If I
