You can do it, but there is the PITA factor VJV discussed. We do this at shows and it works fine, but as a long term maintenance item unburying and reburying the cable is tedious. I tried this at home and decided I could live with the visible cable vs the hassle of keeping it hidden and being able to easily maintain the pump. I wouldn't be so worried about the integrity, the cables are double insulated and the newest ones the cable is very thin and polyurethane, it is very flexible and durable, older ones are PVC and the main threat to their integrity is UV light exposure so being buried would only help.