This is the second hose I have purchased and have found the same problem with them both .
considereing its pretty much just 1/2" threads at both ends, My guess is that its a faulty hose. have you tried teflon tape on the ends? Is it leaking at the end that connects to the pipe coming out of the wall or the part you hold?
Its almost 430 am. ill be back at 930am, let me know. id like to help you figure this out.
Sometimes, if you tighten that side too much, the washer can push into the pipe. If its a soft, or softer washer, thats likely whats happening.. The Pipe coming out of the wall(shower arm) is usually a thinner pipe than a regular nipple. Try using a little teflon tape and turn it a 1/4 or 1/2 turn past hand tight. Also, check the the end of the shower arm is smooth and uniform,if not try a different shower arm, you can et them at any hardware store
Ok, we will figure this out. Is the hose connected directly to the shower arm? Or is there a fitting that is attached to the shower arm that the shower head sits in.
To me it sounds like a bad hose.
But lets back track a bit. Can you describe the shower valve and where you are putting the hose on? just so i have a better idea of where you're connecting to. The shower arm is the pipe coming out of the wall up top where the shower head attaches and I am assuming thats where you are attaching the hose to directly.