To post the image within your post:
In Google Chrome, right click ON THE IMAGE and select "Copy Image URL," then click the Insert Image button above the text input area and paste the address and click Ok.
In IE, right-click ON THE IMAGE and select "Copy Shortcut," then repeat above instructions BUT append the image type (such as .jpg) to the end and click Ok.
I don't think the problem is with the hoses. It appears that the top of the boom mount is farther away from the wall than the bottom. The booms are going to want to swing away from the wall. If you flip the bracket over and drill two holes in the way I outlined above, it will swing toward the wall on its own.