I apologize if this is not the correct place for this, I wasn’t sure where else to post it.
One of my garden hose faucets is leaking from the “anit-siphon” cap but only when a hose is attached to it. I triple checked that the water wasn’t coming from the threaded hose connection piece that attaches to the faucet (i don’t know the proper term for it). I also connected that hose to a different exterior faucet and there was no leaking from the other faucet.
When the hose isn’t connected, the water flows through the faucet like normal and does not leak from the anti-siphon cap.
There are no leaks in my basement from the faucet however, I did forget to close the water valve before winter on this faucet.