I suggest creating a separate saloon, a one-stop-shop, to collect questions and solutions regarding hum and ground loop problems. This would allow those with a hum issue to research how others have dealt with the problem and share their own solutions.

These problems crop up fairly often and range from easy to very difficult to diagnose. We've discussed in this forum everything from cable TV induced ground loops to the oddities of having a wind powered generator as part of your electrical system! Just my 2 cents, but I think the collective experience of the Gunslingers on this topic in a single location would help a lot of folks.