My smart hose timer leaks when connected to wider thread. Directly to a simple thin faucet thread works fine. It leaks from both side of the connection to the faucet or connector
leak: Google Image Result
no leak: Google Image Result
any clue how to make this work?
Yeah. Plastic (leak), Brass (no leak). Hmmm. If you don’t need quick-connect, connect hose directly with a good washer and avoid it.
I had the same problem and switching to a brass connector with a thick rubber washer fixed it completely. Skip the plastic quick-connect and thread the hose straight on.
The plastic quick-connect is likely the problem since it can warp or lose grip on a wider thread. Try connecting the hose straight to the faucet with a quality rubber washer and skip the fitting entirely. If you ever need a professional hand with a stubborn leak in Athens, I’ve used Apofraxeis Express for pipe issues and they did a solid job without any hidden costs.