How about creating a little pit and tucking everything underground, including the black wire. I created a pit with pressure treated wood and made my own cover. This was for the sprinkler lines that the pool builder destroyed. I may have some pictures and will attach soon.
Can not find pictures! Basically a square box that you can tuck everything in. You can either drill a 2" hole through the wood, or just notch something out. Black tubing from Lowes or Home depot works great and you can even bury it in the ground elimination the hoses. If you need to disconnect, they can slide right out.