One of the goals in every trip with your trailer is to get there and back without any problems. If eds towing service you stick to a simple check list before you leave, you can eliminate many problems that might occur.
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If you have been on an air flight recently you probably saw the pilot walking around the plane. He's not a mechanic, but he knows what to look for before every trip. You can do the same thing and you do not need to be a trailer specialist.
It was once said that an expert is anyone who lives 50 miles away, or more recently if you stayed in a Holiday Inn Express! So if you tow your trailer more than 50 miles, you to can be an expert at keeping problems away from your trip.
Before every trip and at every gas stop, walk around your trailer and look for the obvious. Is the coupler on correctly, are the chains or cables connected, is the boat or cargo tied down.
If going on a long trip, repeat your check list at each gas stop. Just like the pilots do for every leg of their flight.