It's no surprise to learn that mechanical breakdown is the number-one cause for a tow, and those calls comprise more than half the calls for service.
But if you think it's just engine breakdowns that are the reason, think again.
Steering systems, transmissions, fuel systems, and even lost props are all examples of mechanical breakdown. Grounding is the second most common cause for a tow and is often caused by operator inattention. Having good charts and knowing how to use them can keep you out of trouble.
Dead batteries from running lights, radios, pumps, and stereos (or from keeping batteries past their usable life) are common problems, too. Consider also switching light bulbs to LED. With more electrical demands on modern boats, it's more likely a boat will run down its batteries and not be able to start the engine. Running out of fuel is also a major cause for a tow, often due to faulty or inaccurate fuel gauges. Trying to push the limits of your range is a sure way to find out that it's not quite as far as you thought.
Engine overheats round out the top five reasons for towing service calls. Failed water pump impellers are a prime cause, along with corroded manifolds, clogged intakes, and collapsed hoses.