Hello, Please contact our technical team at 800-645-8258 to discuss mounting the reel on the ceiling. Thank you.
It comes with a hose already
Not that I found, tension cannot be adjusted
Instead of changing or replacing the lead, which would mean tearing apart the unit, add a 4' extension to the end of the lead hose.
It doesn't look like there's an ability to lock or limit the movement where it attaches to the bracket.
It uses a spring retraction system and locks itself at whichever length you choose when you hear a click. To release it and have it recoill again, keep pulling until you hear five clicks and then it should retract itself
Anything can be changed and/or fixed. I have owned this for about ten years with no issue at all. I did drive over the plastic ball once and had to make another stop out of wood.