I have an outside water faucet, most likely from the early 60's, and the male thread is not the same thread as my host connection. Is it possible to get a threaded adaptor for it?
What is the thread on my outside faucet.
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Are the threads like a machine thread rather than coarse ?????
They seem to be machine thread but a different pitch.
It probably is the left over threads of where a vacuum breaker once attached to the hose Bibb.
That doesn't look like it. But what is a 'vacuum breaker' and where would it be used? Thanks
Its
Its a one way valve to prevent back siphoning through a plumbing system. The type I’m speaking of screws onto a hose Bibb faucet.
I have installed that type, there appears to be a broken off set screw (designed to break) to prevent them from being taken off.
Yes, I'm well aware of that! If you drill out the broken set screw you can probably get the piece with the fine threads off, and then just screw a hose on, or get a new vacuum breaker.
Sounds like it is a vacuum breaker, as others have said. I have replaced several of these in the past. You can purchase replacements at any, plumbing supply, big box store and most hardware stores.
It may or may not have a set screw to hold it in place. The original ones usually don't have a set screw, but are held in place with red Locktite. You need to heat it up with a torch to break the Locktite bond. I never use the set screw that comes with the replacement, as they can be very difficult to remove. Most have a break off screw. It may be in a position that is not accessible with a drill. If you do decide you want a set screw, I recommend a standard Allen socket set screw. I usually just leave it off.
It may or may not have a set screw to hold it in place. The original ones usually don't have a set screw, but are held in place with red Locktite. You need to heat it up with a torch to break the Locktite bond. I never use the set screw that comes with the replacement, as they can be very difficult to remove. Most have a break off screw. It may be in a position that is not accessible with a drill. If you do decide you want a set screw, I recommend a standard Allen socket set screw. I usually just leave it off.
It's been my experience that you can't just remove the part of the vacuum breaker remaining on the faucet and connect a garden hose to it. The threads are different.
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