Strange hose bib issue

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Topic by Steve posted 07-19-2015 03:07 AM 12899 views 0 times favorited 11 replies Add to Favorites Watch
View Steve's profile


5 posts in 2022 days

07-19-2015 03:07 AM

Topic tags/keywords: plumbing plumbing parts

I have encountered this issue at my neighbor’s house and have no clue what is happening. His hose bib (outdoor faucet) has a hole about 1/8” through the stem just behind the handle where water sprays out when turned on. The water shuts off fine and doesn’t leak but when turned on it sprays out of this hole and soaks everything around it (including him.) I have read online where this hole is a vacuum breaker for the anti siphon feature but can find no info as to why water would spray out of it or what issue would cause it. The only resolution I can think of would be to replace the stem or bib all together but I would still like to understand what caused the issue in the first place. Any help would be greatly appreciated.

NOTE: the images provided were found online as I didn’t think to take any myself but these images show exactly the same issue he has. I do not own these images.

View bold1's profile


26 posts in 2038 days

07-19-2015 03:14 PM

Hi. Most likely the vac. breaker isn’t seating due to build up or worn parts. The cap on top the sill cock holds the parts. You can open it and try cleaning the parts and housing or clean the housing and replace the internal pieces. The breaker is made so as to open and let air into the cock housing when the cock is closed, so the cock can drain. When water pressure is applied to the breaker (cock open) it is supposed to seal. The hole is the air inlet for the breaker.

View Steve's profile


5 posts in 2022 days

07-20-2015 05:53 PM

Thanks bold1 for your reply. I’ll try cleaning it out good and go from there. If that doesn’t do the trick I’ll compare the price of replacement parts to a new bib all together. May be worth just doing all new if that’s the case considering his place is only five years old. Again, I appreciate you taking the time to answer my question because this one had me scratching my head with a dumbfounded look on my face for sure.

View dbray45's profile


157 posts in 1949 days

07-21-2015 11:20 AM

If the place is only 5 years old, you may want to contact the builder and plumber that installed it. Many times a new building will have up to a 10 year warranty.

-- Love woodworking and fixing most anything

View Steve's profile


5 posts in 2022 days

07-21-2015 03:59 PM

Thank you dbray45. That’s a good point.

View bold1's profile


26 posts in 2038 days

07-25-2015 07:35 PM

Steve. How did you make out with this? Let us know.

View Steve's profile


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