@Dev4
Casadell, there is a finite life to everything, and because your equipment is being used by others it is going to be subject to what would be called 'wear and tear'! How long has the towel rail been there? How many previous guests and other people have used it since it was purchased and installed?
If the hot water heater in my cottage broke during a guests visit I would not for a second blame the guest and expect them to pay for it. These things do from time to time happen and when you set your listing price you take into account depreciation on the fittings.
The hot water service in my cottage has served 93 guests, plus maybe a dozen family visits since it was purchased and installed. If it broke tomorrow that would amount to a cost of $4.00 per guest stay, and frankly, I would consider that reasonable service. I do not expect it to break down tomorrow, I expect another 5 years out of it which will mean the cost per guest for it's service would be measured in a few cents!
But Casadell this is not something that would be worth getting a guest offside and penalising yourself in your reviews. Let it go, get that nice review and hope that you get just as much service out of the next rail as you got out of that one....It's part of hosting!
Cheers.....Rob