Pays for itself the first use
It works!! I hooked it up to my garden hose and the heater hoses on my old truck. The amount of brown, chunky gunk that came flying out was honestly disgusting—but also incredibly satisfying. After about ten minutes of alternating the flow, the water ran crystal clear. I went from barely hitting 30f at the vents to a steady, toasty 90f It saved me about $800 in shop labor and a massive headache. Was easy to use and for the cost it paid for itself the very first time I used it. Must have if your cooling system has had rust, scale, or stop leak clogging the heater core. Definitely need to go gentle though to keep from damaging the heater core. Read more
