Quote:
Originally Posted by retiredguy123
You need to cut it off with a Dremel cutting tool. There are YouTube videos showing how to do it.
The backflow device is attached with a set screw that can be tightened, but, if you try to unscrew it the screw head will fall off.
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See Post 2. I've removed and replaced dozens upon dozens of them. And whatever you do, don't try to unscrew it without first drilling out the set screw!