I bought two for the cooling system. It worked fine until I used the second one. It had a leak. I thought it might have something to do with the pipe so I used some clamps but it didn't work. Upon inspection I found that the leaks were around the nipple of the device, it looks like it wasn't connected properly. In a rush to test my system, I used a 110 welder to fix it. It was a horrible idea, it melted from too much heat build up even though I had the first nipple pinned. Now I have toβ¦