For wakesurfing, it's all about the right wave. A good wakesurf wave needs to be high enough, have sufficient length, and remain stable behind the boat. Ballast tanks play a crucial role in this. By adding extra weight on board, the boat sinks deeper into the water, creating a larger, more powerful stern wave. But how exactly do ballast tanks work and what should you consider when assembling a good ballast system? In this article, we explain why ballast tanks are essential for wakesurfing and how to use them optimally.
1. What are ballast tanks?
Ballast tanks are tanks or bags that are filled with water to add extra weight to the boat. This weight changes how the boat sits in the water and directly affects the shape of the stern wave. For wakesurfing, ballast is used to make the wave higher, longer, and more powerful.
See our collection of ballast tanks for this.
2. Why ballast is important for wakesurfing
Without extra ballast, a boat often produces a smaller and less powerful wave. By adding ballast, the hull sinks deeper into the water, displacing more water. This creates a fuller wakesurf wave with more push.
Ballast primarily helps with:
- a higher wave behind the boat
- more length in the surf zone
- better control over the wave shape
- more stability for the surfer
3. The correct placement of ballast
Not only the amount of ballast is important, but especially its placement. Weight in the back of the boat usually creates a higher wave, while weight on one side helps to build up the wave better on the starboard or port side.
In the back of the boat
Ballast in the aft compartments provides more depth and height in the wave.
On one side
For wakesurfing, extra ballast is often placed on the surf side. This makes the wave cleaner and more usable.
Centrally in the boat
A little weight in the middle can help make the wave longer and more stable.
4. Ballast pumps and filling
A good ballast system only works well when you can fill and empty tanks quickly and reliably. Ballast pumps ensure that water is easily pumped into and out of the tanks.
When choosing ballast pumps, pay attention to capacity, connection size, and reliability. See our collection of ballast pumps for this.
5. Fittings and components for a reliable system
In addition to tanks and pumps, you need good fittings, hoses, and couplings. These components ensure that the system remains leak-free and functions safely while boating.
Always use components suitable for marine use and regularly check for wear, leaks, or loose connections. See our ballast fittings & components.
Frequently asked questions about ballast tanks
How much ballast do I need for wakesurfing?
That depends on your boat, hull shape, and desired wave. Start with a basic setup and gradually add extra weight.
Can every boat use ballast tanks?
Not every boat is suitable for heavy ballast. Always check the maximum load capacity and the construction of your boat.
Should ballast be on the left or right side of the boat?
That depends on the side you are surfing on. Usually, you place extra ballast on the surf side to make the wave cleaner.