 So this is my Flowmaster 56 ounce model 5.6 HD that I got from Home Depot and it has developed leak right now it doesn't look major but when I pressurize it right here where the seam is right here where the seam is right here where the seam is it has developed leak right on the very joint this parallel joint it has developed a leak so if you've wanted to pick up a Flowmaster that works best under pressure well guess what if it has a manufacturing defect that it's going to start leaking it's not going to work best in the defect hopefully I'll contact Flowmaster to see if they can possibly refund or preferably send a different device but be careful when you're using a Flowmaster some of these things defects those things will leak