I have a Home Depot type of dolly that has a flat tire. Tried pumping air into the valve... couldn't get any pressure in the tire. Doesn't seem to have any nails in it. Couldn't see any tube inside either. Reminds me of a regular car tire. I know it sounds silly, but I thought of bringing it down to a tire shop and having them look at it. Or, would I be better off taking off the wheel and buying a new wheel/tire unit?
The tire thickness and wheel build is similar to that of a regular car tire. Get the feeling I would need a special machine to take it off and put it back on again.