Getting the hang of how to tow a tube behind a boat is one of those things that looks easy until you're actually in the driver's seat with a couple of screaming kids or competitive friends behind you. It's easily the most popular way to spend a Saturday on the lake, but if you've never done it before, there's a bit more to it than just pinning the throttle and hoping for the best. You want everyone to have a great time, but you also want to make sure everyone stays in one piece and that you don't accidentally damage your boat.
If you're new to the world of towables, don't sweat it. Once you understand the basics of the equipment, the driving techniques, and a few safety rules, you'll be the favorite captain on the water.
Get the Right Gear Before You Hit the Water
You might think any old rope and a sturdy-looking tube will do, but that's a quick way to end your day early. First off, you need a rope specifically designed for tubing. You might see "tow ropes" for water skiing or wakeboarding, but those are different. Tubing ropes are designed to stretch a little and, more importantly, they are rated for the weight and number of people on the tube. A rope rated for a single rider will snap like a rubber band if you try to pull a four-person "chariot" style tube with it.
Then there's the tube itself. Make sure it's fully inflated. A soft tube creates a ton of drag, which makes the boat work harder and makes the ride sluggish and boring for the person back there. You should be able to sit on it without it sinking in much. Pro tip: Check the air pressure after the tube has been in the cold water for a few minutes. Air shrinks when it cools down, so you'll likely need to add a bit more air once you're away from the dock.
Setting Up the Connection
When it comes to actually hooking things up, where you attach the rope matters. Most modern boats have a tow eye on the transom or a pylon. If you have an outboard motor, you might need a "tow harness" or a "bridle" that connects to both sides of the stern and floats behind the engine. This keeps the rope from getting tangled in the prop—which is a nightmare you definitely want to avoid.
One thing to keep in mind: never use a ski pylon for large, multi-person tubes unless the boat manufacturer specifically says it's okay. The sheer amount of drag a big tube creates can actually bend the pylon or damage the fiberglass of the boat. For the big stuff, sticking to the transom tow eyes is usually the safer bet.
The Importance of a Good Spotter
You can't drive and watch the rider at the same time. Well, you can, but you shouldn't. In many places, it's actually illegal to tow someone without a designated spotter in the boat. The spotter's only job is to watch the rider and let the driver know the second someone falls off or signals to stop.
The spotter and the rider need to be on the same page with hand signals. Since it's way too loud to shout over the engine and the wind, you'll need the basics: thumbs up for faster, thumbs down for slower, a "pat on the head" for "I want to go back to the boat," and a simple hand wave to show the driver they're okay after a wipeout.
Driving Techniques for Tubing
Once everyone is ready, take the slack out of the rope slowly. Don't just floor it from a dead stop while the rope is still floating in the water. You'll jerk the rider's arms out of their sockets (metaphorically) or snap the rope. Ease forward until the rope is tight, check that the rider is ready, and then accelerate smoothly to get the tube up on a plane.
Driving for a tuber is different than driving for a water skier. While a skier wants a nice, straight line and a steady speed, a tuber usually wants some action. You'll want to do some gentle S-curves to get the tube crossing the wake. Crossing the wake is where the real fun happens, but you have to be careful. If you turn too sharply, the tube can "whip" out to the side at speeds much faster than the boat is actually going. This is called the slingshot effect. It's fun, but it can get dangerous if there are other boats or docks nearby.
Keeping It Safe and Fun
Speed is the biggest factor in safety. For little kids, 10 to 15 mph is usually plenty. They're closer to the water and it feels a lot faster to them than it does to you. For adults, you might go 20 to 25 mph, but there's rarely a reason to go faster than that. Remember, if someone falls off at 30 mph, hitting the water is going to feel like hitting a parking lot.
Always keep a massive "buffer zone." When you're learning how to tow a tube behind a boat, you have to remember that you aren't just a 20-foot boat anymore—you're a 20-foot boat with a 60-foot rope and a tube at the end. That's a long "tail" that can swing wide in turns. Stay far away from shorelines, buoys, bridge pilings, and other boaters.
What to Do When Someone Falls Off
It's going to happen eventually—that's half the point of tubing. When the rider hits the water, the spotter should immediately raise a "skier down" flag (if your state requires one) and tell the driver.
Don't just whip the boat around at high speed. Pull back to neutral, let the wake settle for a second, and then turn back toward the rider at a slow, idle speed. You want to approach them from the downwind side so the boat doesn't drift over them. Always keep the rider on the driver's side of the boat so you can keep your eyes on them the whole time. Most importantly: turn the engine off completely before they get anywhere near the back of the boat to climb back on. Even in neutral, a spinning prop is dangerous.
Final Thoughts for the Captain
Towing a tube is all about reading your riders. If they look terrified, slow down. If they're yawning, maybe kick it up a notch or try a slightly sharper turn. The goal is to get back to the dock with everyone smiling and tired out from a good day.
It takes a little practice to get the "feel" for how the tube follows the boat, but you'll get the hang of it quickly. Just stay alert, keep your spotter focused, and don't get too carried away with the high-speed turns. Once you've mastered how to tow a tube behind a boat, you'll find that it's pretty much the best way to enjoy a summer afternoon. Just don't forget the sunscreen—you're going to be out there for a while!